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8. The free-body diagrams of four objects are shown. Which object has a net force of -5 N c. Y down? а. W b. X d. Z 1F,- 20 N F- 20 N F,-15 N F 15 N ▪ 10 N - 15 N F,= -10N E,- 10N F,- -10 N F, - 20 N F,= -15N JÉ- 10N F-10 N VF-15N IF,--25 N --15 N W

8. The free-body diagrams of four objects are shown. Which object has a net force of -5 N c. Y down? а. W b. X d. Z 1F,- 20 N F- 20 N F,-15 N F 15 N ▪ 10 N - 15 N F,= -10N E,- 10N F,- -10 N F, - 20 N F,= -15N JÉ- 10N F-10 N VF-15N IF,--25 N --15 N W

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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11:23 4 3 4 Time (s) 2 of 12 1 5 6. Jen made a diagram to compare speed and velocity. Which label belongs in the area marked X? a. Is always constant b. Has direction c. Includes magnitude d. Depends on a reference frame Speed Velocity 7. A train travels 600 km in 4 hours. What is the speed of the train? a. 0.007 km/h b. 604 km/h c. 150 km/h d. 2,400 km/h 8. The free-body diagrams of four objects are shown. Which object has a net force of -5 N c. Y down? a. W b. X d. Z 1F,= 20 N 20N F= 10 N F- 15 N F--10 N F= 10 N F,=-15 N F,- 15 N F,=-10 N F, = 20 N F,= -15 N JÉ = 10 N F=-10 N VF =-15N F--15 N VF, = -25 N W X Y 9. A skateboard rider starts from rest and maintains a constant acceleration of + 0.50 m/s? for 8.4 s. What is the rider's displacement during this time? a. 10 m b. 14 m с. 18 m d. 22 m 10. A sports car can move 100.0 m in the first 4.5 s of uniform acceleration. Find the car's acceleration. a. 9.9 m/s b. 12.5 m/s c. 25.2 m/s d. 45.8 m/s 11. A rolling ball has an initial velocity of -1.6 m/s. If the ball has a constant acceleration of -0.33 m/s, what is its velocity after 3.6 s a. - 1.2 m/s b. -2.8 m/s C. -3.4 m/s d. -4.4 m/s 12. According to Newton's in motion with a constant velocity. law, an object with no net force acting on it remains at rest or a. first b. second c. third d. universal 13. If you push against a wall, the wall pushes back against you with_ force. b. less c. equal d. more а. по the car's acceleration. 14. A car manufacturer wa Which changes should the engineers consider making to the design?
Transcribed Image Text:11:23 4 3 4 Time (s) 2 of 12 1 5 6. Jen made a diagram to compare speed and velocity. Which label belongs in the area marked X? a. Is always constant b. Has direction c. Includes magnitude d. Depends on a reference frame Speed Velocity 7. A train travels 600 km in 4 hours. What is the speed of the train? a. 0.007 km/h b. 604 km/h c. 150 km/h d. 2,400 km/h 8. The free-body diagrams of four objects are shown. Which object has a net force of -5 N c. Y down? a. W b. X d. Z 1F,= 20 N 20N F= 10 N F- 15 N F--10 N F= 10 N F,=-15 N F,- 15 N F,=-10 N F, = 20 N F,= -15 N JÉ = 10 N F=-10 N VF =-15N F--15 N VF, = -25 N W X Y 9. A skateboard rider starts from rest and maintains a constant acceleration of + 0.50 m/s? for 8.4 s. What is the rider's displacement during this time? a. 10 m b. 14 m с. 18 m d. 22 m 10. A sports car can move 100.0 m in the first 4.5 s of uniform acceleration. Find the car's acceleration. a. 9.9 m/s b. 12.5 m/s c. 25.2 m/s d. 45.8 m/s 11. A rolling ball has an initial velocity of -1.6 m/s. If the ball has a constant acceleration of -0.33 m/s, what is its velocity after 3.6 s a. - 1.2 m/s b. -2.8 m/s C. -3.4 m/s d. -4.4 m/s 12. According to Newton's in motion with a constant velocity. law, an object with no net force acting on it remains at rest or a. first b. second c. third d. universal 13. If you push against a wall, the wall pushes back against you with_ force. b. less c. equal d. more а. по the car's acceleration. 14. A car manufacturer wa Which changes should the engineers consider making to the design?
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