Instructions to students: Use your Text Book and attempt these questions.

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1 Instrutions to students: Use your Text Book nd ttempt these questions. Due Dte: Unit 2 Chpter 8 Test Slrs nd vetors Totl mrks 50 Nme: Clss: Dte: Setion A Selet the est nswer for eh question. (1 mrk per question) 1 In the study of motion, displement n e defined s: A B C how fr ody trvels. the hnge in position of ody in given diretion. the lotion of n ojet. D the distne trvelled y n ojet tht is moving in stright line. 2 Whih of the lists elow ontins only vetor quntities? A B C displement, veloity, elertion, fore displement, speed, elertion, weight distne trvelled, veloity, elertion, fore D displement, veloity, elertion, mss. 3 Whih of the following is vetor mesurement? A 16.0 B 16.0 m Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 1

2 C 16.0 km D 16.0 km north. Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 2

3 The following informtion pplies to Questions 4 nd 5. The grph elow shows the displement of frmer on motoryle, riding north (positive) nd south (negtive) long oundry of her property while ounting livestok. 4 Wht ws the totl distne trvelled y the frmer over the entire period? d 500 m 300 m 700 m 1200 m 5 Wht ws the totl displement of the frmer over the entire period? d 200 m 0 m 1200 m 1200 m 6 Whih of the following est represents the vetors F 1 nd F 2, if F 1 is 10 N to the right nd F 2 is 5 N to the left? F 1 F 2 F 1 F 2 F 1 F 2 Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 3

4 7 Whih digrm est represents fore of 200 N to the right ting on the ox? 200 N 200 N 200 N d 200 N 8 Whih vetor digrm show the orret ddition of 15 N west nd 5 N est, nd the orret resultnt vetor R? d R R R R 9 If sign onvention is used, where to the right is positive nd to the left is negtive, then the orret vetor sum of 25.0 N right nd 13.0 N left is: (+25.0) + (-13.0) (-25.0) + (-13.0) (-25.0) + (+13.0) d (+25.0) + (+13.0) 10 A super-ouny ll hits wll with veloity of 7.0 m s 1 est nd reounds with veloity of 6.0 m s 1 west. Determine the hnge in veloity of the ll. d 1 m s 1 west. 13 m s 1 est. 13 m s 1 west. 1 m s 1 est. Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 4

5 Setion B 1 Use sign onvention to lulte the resultnt vetor for the following vetor sums: 24.5 N west N est N est N west. (2 mrks) 17.5 N north N south. (2 mrks) 2 A r goes 5.00 km est, 3.00 km south, 2.00 km west nd 1.00 km north. How fr north or south hs the r gone? (2 mrks) How fr est or west hs the r gone? (2 mrks) Find the resultnt displement of the r. (2 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 5

6 3 A rdio-ontrolled toy r strts next to ruish in on the shool ovl. It trvels 20 m north nd then trvels 15 m est. Wht is the totl distne trvelled y the r? (1 mrk) Fully desrie the r s finl displement from the ruish in. (2 mrks) 4 On n erly morning wlk, Tom leves his home nd wlks t onstnt veloity overing 1.50 m every seond towrds the west. He proeeds t this veloity for 15.0 seonds long stright footpth until oming to rod. He stops t the rod for 10.0 seonds, nd then he rosses the rod overing 2.50 m every seond for 5.0 seonds. After this time he ontinues t onstnt veloity overing 1.50 m every seond towrds the west for 25.0 seonds, t whih time he immeditely turns round nd without hnging speed proeeds k to the rod nd then stops gin. Plot grph of Tom s displement versus time to represent the motion from his home to his finl return to the rod. (4 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 6

7 Determine the totl distne he overed during this time. (2 mrks) Wht ws his finl displement from his home? (2 mrks) 5 A girl wlks 100 m in 40 seonds. She then runs k to her strting point in 15 seonds. She rests for 10 seonds. She then wlks the 100 m in 50 seonds nd runs k in 20 seonds. Plot distne time grph. (3 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 7

8 Plot displement time grph. (3 mrks) 6 In rugy, tti tem uses to gin ground is for one plyer to kik the ll very high nd then quikly run in the sme diretion to th the ll efore it hits the ground. When this tti is used nd the plyer thes the ll, whih (if ny) hs the greter displement, the footll or the footller? Explin your nswer. (3 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 8

9 7 Three trtors re onneted y hins to the sme point. The fore exerted y trtor A is 3000 N north, trtor B is 4000 N south-west nd trtor C is 2000 N south. Use sled vetor digrm to find the mgnitude of the resultnt of these three fores t tht point. (4 mrks) Two tow truks exert fores of 4000 N north nd 3500 N est on ogged r. Clulte the resultnt fore ting on the ogged r. (2 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 9

10 8 The steepest residentil street in the world is Bldwin St, Dunedin in NZ. This hs n inline of 20. A r of mss 750 kg is prked on this street s shown elow. The hndrke on the r is seurely on. On the digrm refully drw nd lel ll of the fores ting on the r nd show the diretion (if ny) of the net fore. (4 mrks) Copyright Person Austrli 2016 ( division of Person Austrli Group Pty Ltd) ISBN Pge 10

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