Momentum and Impulse Challenge Problems Problem 1: Estimation
|
|
|
- Noreen Montgomery
- 5 years ago
- Views:
Transcription
1 Momentum and Impulse Challenge Problems Problem 1: Estimation Estimate the magnitude of the momentum of the following moving objects: a) a person walking; b) a car moving along a highway; c) a truck moving along a highway; d) a passenger jet at cruising speed; e) a freight train transporting coal. Indicate your choice of reference frame for each case.
2 Problem 2: Impulse and Center of Mass Velocity: Elevator Ride A person is riding the Building 16 elevator, while standing on the force platform that was used in the lecture demonstration on Monday Oct 16. The force platform measures the force of the person s feet on the platform. The data in Figure 16.1a shows a plot of the force of platform on the person (normal force) vs. time for the person in the elevator. Figure 16.1a Figure 16.1b Figure 16.1b highlights the area for the time interval [t 1 = 2.75 s, t 2 = 6.35 s]. The impulse for this interval is:! I[t1,t 2 ] =! total! F (t) dt = "174 N # s (2.1) t 2 =6.35 s t 1 = 2.75 s Figure 16.2 show a plot of the vertical component of the center of mass velocity of the person vs. time. a) What does the negative sign signify in Eq.(2.1) in terms of the choice of positive direction for a relevant coordinate axis? Is the choice of positive direction up or down? Based on the plot in Figure 16.1a, describe the motion of the elevator during the interval [t 1 = 2.75 s, t f = 12.0 s]. In particular, identify any distinct stages. For each distinct stage
3 describe whether the elevator is moving up or down, whether or not the acceleration is constant (or zero), or non-constant. Explain your reasoning. b) Explain why the shaded area in Figure 16.1b is with respect to a baseline force of 700 N and not 0 N. c) Explain how you can use the data in Figure 16.1a to calculate the change in the vertical component of the velocity of the center of mass of the person? In particular, what is the vertical component of the velocity of the center of mass of the person at (i) t 1 = 2.75 s, (ii) t 2 = 6.35 s. How does your calculation compare with the results for the vertical component of the velocity of the center of mass of the person shown in the graph in Figure 16.2? d) What do you expect the impulse to equal for the time interval [t 1 = 2.75 s, t f = 12.0 s]?
4 Problem 3: Compressive Strength of Bones The compressive force per area necessary to break the tibia in the lower leg is about F / A = 1.6! 10 8 N " m -2. The smallest cross sectional area of the tibia, about 3.2 cm 2, is slightly above the ankle. Suppose a person of mass m = 60 kg jumps to the ground from a height h 0 = 2.0 m and absorbs the shock of hitting the ground by bending the knees. Assume that there is constant deceleration during the collision. During the collision, the person lowers his center of mass by an amount!d = 1.0 cm. a) What is the collision time!t col? b) Find the average force of the ground on the person during the collision. c) What is the ratio of average force of the ground on the person to the gravitational force on the person? Can we effectively ignore the gravitational force during the collision? d) Will the person break his ankle?
5 Problem 4: Momentum and Impulse A superball of m 1, starting at rest, is dropped from a height h 0 above the ground and bounces back up to a height of h f. The collision with the ground occurs over a time interval!t. c a) What is the momentum of the ball immediately before the collision? b) What is the momentum of the ball immediately after the collision? c) What is the average force of the ground on the ball? d) What impulse is imparted to the ball? e) What is the change in the kinetic energy during the collision?
6 Problem 5: Impulse and Newton's Second Law: More Bouncing Balls A superball of mass m is thrown straight up into the air starting from a height y 0 above the ground. The ball reaches a maximum height y max above the ground. After the ball hits the ground, it bounces back up to a new maximum height equal to(2 / 3) y max. Assume the collision with ground takes place over a time!t collision. The above process is represented in the figure to the right. The important states of the ball are labeled: A starting point of the ball: B maximum height of the ball: C when the ball just hits the ground (moving down): D when the ball just bounces from the ground (moving up): E new maximum height of the ball. y max 2/3 y max y 0 0 ĵ B A C E D ground a) What was the magnitude of the initial velocity v 0 of the ball when it was released? b) In terms of y max and the gravitational acceleration g, what was the change in the kinetic energy of the ball due to the collision of the ball with the ground? c) What impulse did the ground impart to the ball? d) What was the average force of the ground on the ball during the collision?
7 MIT OpenCourseWare SC Physics I: Classical Mechanics For information about citing these materials or our Terms of Use, visit:
Problem Set 9: Momentum and Collision Theory. Nov 1 Hour One: Conservation Laws: Momentum and Collision Theory. Reading: YF
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Physics 8.0T Fall Term 2004 Problem Set 9: Momentum and Collision Theory Available on-line October 29; Due: November 9 at 4:00 p.m. Please write
Part Two: Earlier Material
Part Two: Earlier Material Problem 1: (Momentum and Impulse) A superball of m 1 = 0.08kg, starting at rest, is dropped from a height falls h 0 = 3.0m above the ground and bounces back up to a height of
Problem Set 9: Momentum and Collision Theory : Solutions
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Physics 8.0T Fall Term 2004 Problem Set 9: Momentum and Collision Theory : Solutions Problem : Impulse and Momentum The compressive force per
Inertia, momentum 6.4
6.1 6.2 6.3 Inertia, momentum 6.4 Momentum Impulse (Ft) (mv) = F t 6.5 6.6 6.7 6.8 6.9 -- Questions -- MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
2.003SC Engineering Dynamics
2.003SC Engineering Dynamics Problem Set 1 1. This is a review problem on the topic of projectile motion. A football player kicks a ball, giving it an initial speed of 80 ft/s with an initial angle relative
This homework is extra credit!
This homework is extra credit! 1 Translate (10 pts) 1. You are told that speed is defined by the relationship s = d /t, where s represents speed, d represents distance, and t represents time. State this
CP Snr and Hon Freshmen Study Guide
CP Snr and Hon Freshmen Study Guide Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Displacement is which of the following types of quantities? a. vector
8.01x Classical Mechanics, Fall 2016 Massachusetts Institute of Technology. Problem Set 1
8.01x Classical Mechanics, Fall 2016 Massachusetts Institute of Technology 1. Car and Bicycle Rider Problem Set 1 A car is driving along a straight line with a speed v 0. At time t = 0 the car is at the
System of Particles and of Conservation of Momentum Challenge Problems Solutions
System of Particles and of Conservation of Momentum Challenge Problems Solutions Problem 1 Center of Mass of the Earth-Sun System The mean distance from the earth to the sun is r 11 = 1.49 10 m. The mass
Collisions. Of classical objects like collisions of motor vehicles. Of subatomic particles collisions allow study force law.
Collision Theory Collisions Any interaction between (usually two) objects which occurs for short time intervals Δt when forces of interaction dominate over external forces. Of classical objects like collisions
Page 1. Name: Section This assignment is due at the first class in 2019 Part I Show all work!
Name: Section This assignment is due at the first class in 2019 Part I Show all work! 7164-1 - Page 1 1) A car travels at constant speed around a section of horizontal, circular track. On the diagram provided
Chapter 26 Elastic Properties of Materials
Chapter 26 Elastic Properties of Materials 26.1 Introduction... 1 26.2 Stress and Strain in Tension and Compression... 2 26.3 Shear Stress and Strain... 4 Example 26.1: Stretched wire... 5 26.4 Elastic
1. A train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? A. 10 km B km C. 25 km D. 45 km E. 50 km
Name: Physics I Mid Term Exam Review Multiple Choice Questions Date: Mr. Tiesler 1. A train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? A. 10 km B. 22.5 km C. 25 km D. 45 km
Module 16: Momentum. p = m v. (16.2.1)
Module 16: Momentum Law II: The change of motion is proportional to the motive force impressed, and is made in the direction of the right line in which that force is impressed. If any force generates a
The diagram below shows a block on a horizontal frictionless surface. A 100.-newton force acts on the block at an angle of 30. above the horizontal.
Name: 1) 2) 3) Two students are pushing a car. What should be the angle of each student's arms with respect to the flat ground to maximize the horizontal component of the force? A) 90 B) 0 C) 30 D) 45
Name: Class: Date: p 1 = p 2. Given m = 0.15 kg v i = 5.0 m/s v f = 3.0 m/s Solution
Assessment Chapter Test A Teacher Notes and Answers Momentum and Collisions CHAPTER TEST A (GENERAL) 1. c 2. c 3. b 4. c 5. a p i = 4.0 kg m/s p f = 4.0 kg m/s p = p f p i = ( 4.0 kg m/s) 4.0 kg m/s =
A) more mass and more inertia C) the same as the magnitude of the rock's weight C) a man standing still on a bathroom scale
1. A 15-kilogram cart is at rest on a horizontal surface. A 5-kilogram box is placed in the cart. Compared to the mass and inertia of the cart, the cart-box system has A) more mass and more inertia B)
Version PREVIEW Semester 1 Review Slade (22222) 1
Version PREVIEW Semester 1 Review Slade () 1 This print-out should have 48 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Holt SF 0Rev 10A
Two Dimensional Kinematics Challenge Problems
Two Dimensional Kinematics Challenge Problems Problem 1: Suppose a MIT student wants to row across the Charles River. Suppose the water is moving downstream at a constant rate of 1.0 m/s. A second boat
3. A piece of candy is accelerated at 3.0 m/s 2 in the direction shown by a, over a frictionless horizontal surface. The acceleration is caused by 3
3. A piece of candy is accelerated at 3.0 m/s 2 in the direction shown by a, over a frictionless horizontal surface. The acceleration is caused by 3 forces, 2 of which are shown. F 1 has a magnitude of
Objectives: Identify the factors that affect an object s momentum Identify the factors that affect how much an object s momentum changes?
Momentum is conserved for all collisions as long as external forces don t interfere. Objectives: Identify the factors that affect an object s momentum Identify the factors that affect how much an object
Final Review. If a car has 3,000kg-m/s of momentum, and a mass of 1,000kg. How fast is it moving? A ball that has momentum must also have energy.
Physics Name: Date: Period: Final Review Write the appropriate formulas with all units below. Impulse Momentum Conservation of Momentum Rank these in order from least to most momentum:.01kg mass moving
Collision Theory Challenge Problems
Collision Theory Challenge Problems Problem 1 Estimate the energy loss in a completely inelastic collision between two identical cars that collide head-on traveling at highway speeds. Problem 2 You just
Dynamics Multiple Choice Homework
Dynamics Multiple Choice Homework PSI Physics Name 1. In the absence of a net force, a moving object will A. slow down and eventually stop B. stop immediately C. turn right D. move with constant velocity
Rotation and Translation Challenge Problems Problem 1:
Rotation and Translation Challenge Problems Problem 1: A drum A of mass m and radius R is suspended from a drum B also of mass m and radius R, which is free to rotate about its axis. The suspension is
(A) I only (B) III only (C) I and II only (D) II and III only (E) I, II, and III
1. A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1m, they both have the same (A) inertia (B) speed (C)
Slide 1 / A train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? 10 km 22.5 km 25 km 45 km 50 km
Slide 1 / 96 1 train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? 10 km 22.5 km 25 km 45 km 50 km Slide 2 / 96 2 bicyclist moves at a constant speed of 6 m/s. How long it will
13.7 Power Applied by a Constant Force
13.7 Power Applied by a Constant Force Suppose that an applied force F a acts on a body during a time interval Δt, and the displacement of the point of application of the force is in the x -direction by
CP Physics Practice 18 Week Test
CP Physics Practice 18 Week Test MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A sheet of paper can be withdrawn from under a container of orange
Extra Circular Motion Questions
Extra Circular Motion Questions Elissa is at an amusement park and is driving a go-cart around a challenging track. Not being the best driver in the world, Elissa spends the first 10 minutes of her go-cart
Momentum & Energy Review Checklist
Momentum & Energy Review Checklist Impulse and Momentum 3.1.1 Use equations to calculate impulse; momentum; initial speed; final speed; force; or time. An object with a mass of 5 kilograms is moving at
Semester 1 Final Exam Review Answers
Position (m) Mass (g) Semester 1 Final Exam Review Answers A physics student was interested in finding the mass of a penny. To do so she grabbed a bunch of pennies and placed them on a scale. She gathered
S15--Phys Q2 Momentum
Name: Class: Date: ID: A S15--Phys Q2 Momentum Multiple Choice Identify the choice that best completes the statement or answers the question. 1. If the momentum of an object changes and its mass remains
Collision Theory Challenge Problems Solutions
Collision Theory Challenge Problems Solutions Problem 1 Estimate the energy loss in a completely inelastic collision between two identical cars that collide head-on traveling at highway speeds! Solution:
Conceptual Physics Momentum and Impulse Take Home Exam
Conceptual Physics Momentum and Impulse Take Home Exam Multiple Choice Identify the choice that best completes the statement or answers the question. Write notes in the margin explaining your answer 1.
1 In the absence of a net force, a moving object will. slow down and eventually stop stop immediately turn right move with constant velocity turn left
Slide 1 / 51 1 In the absence of a net force, a moving object will slow down and eventually stop stop immediately turn right move with constant velocity turn left Slide 2 / 51 2 When a cat sleeps on a
PHYS 1441 Section 002 Lecture #17
PHYS 1441 Section 002 Lecture #17 Dr. Jaehoon Linear Momentum Linear Momentum and Impulse Linear Momentum and Forces Linear Momentum Conservation Collisions Center of Mass Today s homework is homework
Physics 207 Lecture 11. Lecture 11. Chapter 8: Employ rotational motion models with friction or in free fall
Goals: Lecture 11 Chapter 8: Employ rotational motion models with friction or in free fall Chapter 9: Momentum & Impulse Understand what momentum is and how it relates to forces Employ momentum conservation
Physics 130: Questions to study for midterm #1 from Chapter 6
Physics 130: Questions to study for midterm #1 from Chapter 6 1. Which has the greater momentum, an 18-wheeler parked at the curb or a Volkswagen rolling down a hill? a. 18-wheeler b. Volkswagen c. The
1 A freight car of mass 20,000 kg moves along a frictionless level railroad track with a constant speed of 15 m/s. What is the momentum of the car?
Slide 1 / 26 1 freight car of mass 20,000 kg moves along a frictionless level railroad track with a constant speed of 15 m/s. What is the momentum of the car? 30,000 kg m/s 3,000 kg m/s 300,000 kg m/s
Be on time Switch off mobile phones. Put away laptops. Being present = Participating actively
A couple of house rules Be on time Switch off mobile phones Put away laptops Being present = Participating actively Collisions: amazing physics Het basisvak Toegepaste Natuurwetenschappen http://www.phys.tue.nl/nfcmr/natuur/collegenatuur.html
Midterm Prep. 1. Which combination correctly pairs a vector quantity with its corresponding unit?
Name: ate: 1. Which combination correctly pairs a vector quantity with its corresponding unit?. weight and kg. velocity and m/s. speed and m/s. acceleration and m 2 /s 2. 12.0-kilogram cart is moving at
CHAPTER 4. Impulse and momentum. CHAPTER s Objectives
60 CHAPTER 4 Impulse and momentum CHAPTER s Objectives To understand the interaction between objects through the impulse and momentum concepts To introduce the law o conservation o momentum, and apply
Momentum and Impulse Practice Multiple Choice
Choose the alternative that best answers the question and record your answer on the Scantron sheet provided 1. A ball of putty is thrown at a wall and sticks to its surface. Which of the following quantities
Impulse simply refers to a change in momentum, and is usually caused by a change in velocity, as described by p = m v.
1 Impulse and Momentum Recall from Newton s 1 st Law: inertia is the tendency of an object to keep on doing what its already doing, that is: either remaining stationary, or: travelling at a constant velocity.
Physics 30 Momentum and Impulse Notes
Jan 30 8:48 PM Momentum the momentum of an object is the product of its mass and velocity i.e. how hard it is to stop something vs. inertia: momentum is a vector quantity the main equation used to find
Physics 11. Unit 5 Momentum and Impulse
Physics 11 Unit 5 Momentum and Impulse 1 1. Momentum It is always amazing to see karate experts chopping woods or blocks. They look so extraordinary and powerful! How could they do that? 2 Let s consider
Physics 18 Spring 2010 Midterm 1
Physics 18 Spring 2010 Midterm 1 For the midterm, you may use one sheet of notes with whatever you want to put on it, front and back. Please sit every other seat, and please don t cheat! If something isn
Module 17: Systems, Conservation of Momentum and Center of Mass
Module 17: Systems, Conservation of Momentum and Center of Mass 17.1 External and Internal Forces and the Change in Momentum of a System So far we have restricted ourselves to considering how the momentum
Chapter 4 Conservation Laws
Conceptual Physics/ PEP Name: Date: Chapter 4 Conservation Laws Section Review 4.1 1. List three action and reaction pairs in the picture at right, on page 82 in text. c. 2. Why don t action and reaction
REVISING MECHANICS (LIVE) 30 JUNE 2015 Exam Questions
REVISING MECHANICS (LIVE) 30 JUNE 2015 Exam Questions Question 1 (Adapted from DBE November 2014, Question 2) Two blocks of masses 20 kg and 5 kg respectively are connected by a light inextensible string,
Concept of Force Challenge Problem Solutions
Concept of Force Challenge Problem Solutions Problem 1: Force Applied to Two Blocks Two blocks sitting on a frictionless table are pushed from the left by a horizontal force F, as shown below. a) Draw
Semester 1 Final Exam Review Answers
Position (m) Mass (g) Semester 1 Final Exam Review Answers A physics student was interested in finding the mass of a penny. To do so she grabbed a bunch of pennies and placed them on a scale. She gathered
Regents Physics. Physics Midterm Review - Multiple Choice Problems
Name Physics Midterm Review - Multiple Choice Problems Regents Physics 1. A car traveling on a straight road at 15.0 meters per second accelerates uniformly to a speed of 21.0 meters per second in 12.0
Fall 2009 Sample Problems Exam 2
Sample Problems Exam 2 1. (24 points) In the table below is shown three physical situations in which two objects move and interact. The assumptions you are to make about the objects and the system are
1 kg. 10,000 kg. 1 Page. Momentum is a vector so it has a magnitude and a velocity. Its magnitude is the product of its mass and velocity, p = mv.
Momentum The momentum of a single object is simply equal to the product of its mass and its velocity. The symbol for momentum is p. Since mass is a scalar and velocity is a vector, momentum is also a vector.
Momentum ~ Learning Guide Name:
Momentum ~ Learning Guide Name: Instructions: Using a pencil, answer the following questions. The Pre-Reading is marked, based on effort, completeness, and neatness (not accuracy). The rest of the assignment
Chapter 4 Conservation Laws
Conceptual Physics/ PEP Name: Date: Chapter 4 Conservation Laws Section Review 4.1 1. List three action and reaction pairs in the picture at right, on page 82 in text. a. Force of paddle on water, and
Momentum and Impulse. Announcements. Learning Resources and Suggestions 8.01 W05D1
Momentum and Impulse 8.01 W05D1 Today s Reading Assignment (W05D1): MIT 8.01 Course Notes Chapter 10 Momentum, System of Particles, and Conservation of Momentum Sections 10.1-10.9 Announcements Problem
Unit 2: Vector Dynamics
Multiple Choice Portion Unit 2: Vector Dynamics 1. Which one of the following best describes the motion of a projectile close to the surface of the Earth? (Assume no friction) Vertical Acceleration Horizontal
NEWTON S LAWS OF MOTION
Book page 44-47 NETON S LAS OF MOTION INERTIA Moving objects have inertia a property of all objects to resist a change in motion Mass: a measure of a body s inertia Two types of mass: - inertial mass m
PHYSICS. Chapter 11 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc.
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 11 Lecture RANDALL D. KNIGHT Chapter 11 Impulse and Momentum IN THIS CHAPTER, you will learn to use the concepts of impulse and momentum.
11.1 Introduction Galilean Coordinate Transformations
11.1 Introduction In order to describe physical events that occur in space and time such as the motion of bodies, we introduced a coordinate system. Its spatial and temporal coordinates can now specify
Physics 111. ConcepTest. Lecture 19 (Walker: 9.4-7) Momentum Conservation Collisions Center of Mass Oct. 16, r (80 kg)
Physics 111 Lecture 19 (Walker: 9.4-7) Momentum Conservation Collisions Oct. 16, 2009 Conservation of (System) Momentum When no external forces do work on a system consisting of objects that interact with
Class 11 Physics NCERT Exemplar Solutions Motion in a Straight Line
Class 11 Physics NCERT Exemplar Solutions Motion in a Straight Line Multiple Choice Questions Single Correct Answer Type Q1. Among the four graphs shown in the figure, there is only one graph for which
Momentum & Energy Review Checklist
Momentum & Energy Review Checklist Impulse and Momentum 3.1.1 Use equations to calculate impulse; momentum; initial speed; final speed; force; or time. An object with a mass of 5 kilograms is moving at
Chapter 7- Linear Momentum
Chapter 7- Linear Momentum Old assignments and midterm exams (solutions have been posted on the web) can be picked up in my office (LB-212) All marks, including assignments, have been posted on the web.
12/06/2010. Chapter 2 Describing Motion: Kinematics in One Dimension. 2-1 Reference Frames and Displacement. 2-1 Reference Frames and Displacement
Chapter 2 Describing Motion: Kinematics in One Dimension 2-1 Reference Frames and Displacement Any measurement of position, distance, or speed must be made with respect to a reference frame. For example,
Chapter Work, Energy and Power. Q1. The co-efficient of restitution e for a perfectly elastic collision is [1988] (a) 1 (b) 0 (c) (d) 1 Ans: (a)
![Chapter Work, Energy and Power. Q1. The co-efficient of restitution e for a perfectly elastic collision is [1988] (a) 1 (b) 0 (c) (d) 1 Ans: (a)](/thumbs/83/87594074.jpg "Chapter Work, Energy and Power. Q1. The co-efficient of restitution e for a perfectly elastic collision is [1988] (a) 1 (b) 0 (c) (d) 1 Ans: (a)")
Chapter Work, Energy and Power Q1. The co-efficient of restitution e for a perfectly elastic collision is [1988] (a) 1 (b) 0 (c) (d) 1 Q2. A bullet of mass 10g leaves a rifle at an initial velocity of
4. Collisions and momentum
St 4. Collisions and momentum 4. Introduction Collisions occur when two or more bodies interact for a short time. Examples include a ball bouncing back from a wall, the crash of a car, a jump. At each
Honor Physics Final Exam Review. What is the difference between series, parallel, and combination circuits?
Name Period Date Honor Physics Final Exam Review Circuits You should be able to: Calculate the total (net) resistance of a circuit. Calculate current in individual resistors and the total circuit current.
Physics: Impulse / Momentum Problem Set
Physics: Impulse / Momentum Problem Set A> Conceptual Questions 1) Explain two ways a heavy truck and a person on a skateboard can have the same momentum. 2) In stopping an object, how does the time of
Lab/Demo 5 Periodic Motion and Momentum PHYS 1800
Lab/Demo 5 Periodic Motion and Momentum PHYS 1800 Objectives: Learn to recognize and describe periodic motion. Develop some intuition for the principle of conservation of energy in periodic systems. Use
Twentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, Mechanics Test
Twentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, 2005 Mechanics Test Please answer the following questions on the supplied answer sheet. You may write on this test booklet,
Momentum C HAPTER. Chapter Outline.
www.ck12.org C HAPTER 7 Momentum Chapter Outline 7.1 M OMENTUM AND I MPULSE 7.2 C ONSERVATION OF M OMENTUM IN O NE D IMENSION 7.3 R EFERENCES This chapter is about momentum and impulse. There are an amazing
First few slides are additional review problems from Chs. 1 and 2. WEST VIRGINIA UNIVERSITY Physics
First few slides are additional review problems from Chs. 1 and 2 Average Speed A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 35
Momentum = mass x velocity. units are kg m/s, or any mass velocity combo. Impulse is the change in momentum. impulse
Momentum & Impulse Momentum = mass x velocity p m v units are kgm/s, or any mass velocity combo Impulse is the change in momentum impulse = p impulse m v The 2 nd Law of Motion says any unbalanced force
The main force acting on the body is the gravitational force!
The main force acting on the body is the gravitational force! (W= weight!) W = m g Stability of the body against the gravitational force is maintained by the bone structure of the skeleton! Gravitational
Physics 100. Today. Finish Chapter 5: Newton s 3 rd Law. Chapter 6: Momentum
Physics 100 Today Finish Chapter 5: Newton s 3 rd Law Chapter 6: Momentum Momentum = inertia in motion Specifically, momentum = mass x velocity = m v Eg. Just as a truck and a roller skate have different
Kinematics and One Dimensional Motion
Kinematics and One Dimensional Motion Kinematics Vocabulary Kinema means movement Mathematical description of motion Position Time Interval Displacement Velocity; absolute value: speed Acceleration Averages
MOMENTUM, IMPULSE & MOMENTS
the Further Mathematics network www.fmnetwork.org.uk V 07 1 3 REVISION SHEET MECHANICS 1 MOMENTUM, IMPULSE & MOMENTS The main ideas are AQA Momentum If an object of mass m has velocity v, then the momentum
Momentum and Impulse Concept Tests
Momentum and Impulse Concept Tests Question 1 Consider two carts, of masses m and 2m, at rest on an air track. If you push first one cart for 3 s and then the other for the same length of time, exerting
( m/s) 2 4(4.9 m/s 2 )( 52.7 m)
Version 072 idterm 2 OConnor (05141) 1 This print-out should have 18 questions ultiple-choice questions may continue on the next column or page find all choices before answering V1:1, V2:1, V3:3, V4:5,
( m/s) 2 4(4.9 m/s 2 )( 53.2 m)
Version 074 idterm 2 OConnor (05141) 1 This print-out should have 18 questions ultiple-choice questions may continue on the next column or page find all choices before answering V1:1, V2:1, V3:3, V4:5,
AP PHYSICS 1 UNIT 4 / FINAL 1 PRACTICE TEST
AP PHYSICS 1 UNIT 4 / FINAL 1 PRACTICE TEST NAME FREE RESPONSE PROBLEMS Put all answers on this test. Show your work for partial credit. Circle or box your answers. Include the correct units and the correct
PHYS 1441 Section 002 Lecture #17
PHYS 1441 Section 002 Lecture #17 Monday, April 1, 2013 Linear Momentum Linear Momentum and Impulse Linear Momentum and Forces Linear Momentum Conservation Linear Momentum Conservation in a Two - body
Family Name: Given Name: Student number:
Family Name: Given Name: Student number: Academic Honesty: In accordance with the Academic Honesty Policy (T0.02), academic dishonesty in any form will not be tolerated. Prohibited acts include, but are
Choose the best answer for each of Questions 1-14 below. Mark your answer on your scantron form using a #2 pencil.
Name: Section #: PART I: MULTIPLE CHOICE QUESTIONS (5 pts each) Choose the best answer for each of Questions 1-14 below. Mark your answer on your scantron form using a # pencil. 1. Young s modulus describes
Physics 100. Today. Finish Chapter 5: Newton s 3 rd Law. Chapter 6: Momentum
Physics 100 Today Finish Chapter 5: Newton s 3 rd Law Chapter 6: Momentum Momentum = inertia in motion Specifically, momentum = mass x velocity = m v Eg. Just as a truck and a roller skate have different
v (m/s) 10 d. displacement from 0-4 s 28 m e. time interval during which the net force is zero 0-2 s f. average velocity from 0-4 s 7 m/s x (m) 20
Physics Final Exam Mechanics Review Answers 1. Use the velocity-time graph below to find the: a. velocity at 2 s 6 m/s v (m/s) 1 b. acceleration from -2 s 6 c. acceleration from 2-4 s 2 m/s 2 2 4 t (s)
LECTURE 15 MOMENTUM AND IMPULSE. Lecture Instructor: Kazumi Tolich
LECTURE 15 MOMENTUM AND IMPULSE Lecture Instructor: Kazumi Tolich Lecture 15 2 Reading chapter 9-1 to 9-4 Momentum n Newton s 2 nd law with momentum n Conservation of momentum Impulse n Impulse-momentum
Lecture 18. Newton s Laws
Agenda: l Review for exam Lecture 18 l Assignment: For Monday, Read chapter 14 Physics 207: Lecture 18, Pg 1 Newton s Laws Three blocks are connected on the table as shown. The table has a coefficient
Page 1. Name:
Name: 3834-1 - Page 1 1) If a woman runs 100 meters north and then 70 meters south, her total displacement is A) 170 m south B) 170 m north C) 30 m south D) 30 m north 2) The graph below represents the
1/9/2017. Newton s 2 nd Law of Motion, revisited
Discuss the forces involved (relative size, direction, name of, etc.) in each of the following scenarios: Coasting to a stop at a stop sign Crashing into wall during a car race Accelerating to the speed
PS 300 extra credit for exam 1 (5% max) due 2/13/18
PS 300 extra credit for exam 1 (5% max) due 2/13/18 Name: 1. Name three physical properties that describes an object: mass, temperature, density, volume. 2. What is the mass of gasoline (ρ = 0.680 g/cm
1. The diagram below shows the variation with time t of the velocity v of an object.
1. The diagram below shows the variation with time t of the velocity v of an object. The area between the line of the graph and the time-axis represents A. the average velocity of the object. B. the displacement
Mechanics. Time (s) Distance (m) Velocity (m/s) Acceleration (m/s 2 ) = + displacement/time.
Mechanics Symbols: Equations: Kinematics The Study of Motion s = distance or displacement v = final speed or velocity u = initial speed or velocity a = average acceleration s u+ v v v u v= also v= a =
AP Physics II Summer Packet
Name: AP Physics II Summer Packet Date: Period: Complete this packet over the summer, it is to be turned it within the first week of school. Show all work were needed. Feel free to use additional scratch
UNIT 2G. Momentum & It s Conservation
Name: Date:_ UNIT 2G Momentum & It s Conservation Momentum & Newton s 2 nd Law of Motion Newton s 2 nd Law states When an unbalanced force acts upon a body, it accelerates that body in the direction of
Ch 7, Momentum and Collisions Definition of impulse Definition of momentum Impulse-Momentum Theorem
Today Ch 7, Momentum and Collisions Definition of impulse Definition of momentum Impulse-Momentum Theorem System of particles Conservation of Momentum 1 Data : Fatality of a driver in head-on collision