Find the acceleration of the train B Find the distance traveled during this 20 s? C D
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1 75 A train with a mass of kg increases its speed from 10 m/s to 25 m/s in 20 seconds. Assume that the acceleration is constant and that you can neglect friction. A Find the acceleration of the train B Find the distance traveled during this 20 s? C D Draw a free body diagram for the train; Find the average net force supplied by the locomotive. 98
2 75 A train with a mass of kg increases its speed from 10 m/s to 25 m/s in 20 seconds. Assume that the acceleration is constant and that you can neglect friction. A Find the acceleration of the train 99
3 75 A train with a mass of kg increases its speed from 10 m/s to 25 m/s in 20 seconds. Assume that the acceleration is constant and that you can neglect friction. B Find the distance traveled during this 20 s? 100
4 C 75 A train with a mass of kg increases its speed from 10 m/s to 25 m/s in 20 seconds. Assume that the acceleration is constant and that you can neglect friction. Draw a free body diagram for the train; 101
5 D 75 A train with a mass of kg increases its speed from 10 m/s to 25 m/s in 20 seconds. Assume that the acceleration is constant and that you can neglect friction. Find the average net force supplied by the locomotive. 102
6 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is A B C Draw a free body diagram for the motorcycle showing all applied forces to scale. Next to that diagram show the direction of the acceleration; Find the net force applied to the motorcycle; Find the acceleration of the motorcycle; D What is its speed at the end of 350 m? E Find the elapsed time of this acceleration. 103
7 A 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is Draw a free body diagram for the motorcycle showing all applied forces to scale. Next to that diagram show the direction of the acceleration; 104
8 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is B Find the net force applied to the motorcycle; 105
9 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is C Find the acceleration of the motorcycle; 106
10 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is D What is its speed at the end of 350 m? 107
11 76 A 150 kg motorcycle starts from rest and accelerates at a constant rate along a distance of 350m. The applied force is 250 N and the coefficient of kinetic friction is E Find the elapsed time of this acceleration. 108
12 77 Two blocks, with masses m 1 = 400 g and m 2 = 600 g, are connected by a string and lie on a frictionless tabletop. A force F = 3.5 N is applied to block m 2. A B Draw a free body diagram for each block showing all applied forces to scale. Next to each diagram show the direction of the acceleration of that object. Find the acceleration of each object. C Find the tension force in the string between two objects. 109
13 77 Two blocks, with masses m 1 = 400 g and m 2 = 600 g, are connected by a string and lie on a frictionless tabletop. A force F = 3.5 N is applied to block m 2. A Draw a free body diagram for each block showing all applied forces to scale. Next to each diagram show the direction of the acceleration of that object. 110
14 77 Two blocks, with masses m 1 = 400 g and m 2 = 600 g, are connected by a string and lie on a frictionless tabletop. A force F = 3.5 N is applied to block m 2. B Find the acceleration of each object. 111
15 77 Two blocks, with masses m 1 = 400 g and m 2 = 600 g, are connected by a string and lie on a frictionless tabletop. A force F = 3.5 N is applied to block m 2. C Find the tension force in the string between two objects. 112
16 78 Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of 10 kg and box B has a mass of 16 kg. A force of 54 N is pushing box A. A B C Draw a free body diagram for each block showing all applied forces to scale. Next to each diagram show the direction of the acceleration of that object. Find the acceleration of the system of two boxes. Find the force of contact that each box exerts on its neighbor. 113
17 78 Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of 10 kg and box B has a mass of 16 kg. A force of 54 N is pushing box A. A Draw a free body diagram for each block showing all applied forces to scale. Next to each diagram show the direction of the acceleration of that object. 114
18 78 Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of 10 kg and box B has a mass of 16 kg. A force of 54 N is pushing box A. B Find the acceleration of the system of two boxes. 115
19 78 Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of 10 kg and box B has a mass of 16 kg. A force of 54 N is pushing box A. C Find the force of contact that each box exerts on its neighbor. 116
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