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### 35 Multiple choice questions

1. 9.79 m/s^2
2. 0.6 m/s^2 to the left
3. The total force acting on the object is zero.
4. Acceleration is directly proportional to net force and inversely proportional to mass.
5. Force must be applied to the object.
6. The mass of the second block is one-fifth times the mass of the first block.
7. d) The speed of an object changes even though no forces are acting on the object.
8. The action and reaction forces act on different objects.
9. 16 Newtons to the right
10. c) It takes more force to stop the 55 kilogram ball because the 55 kilogram ball has more inertia.
11. 7 kg
12. d) All of the above
13. 1.82 m/s^2
14. Isabella
15. a) The action force is applied first and the reaction force appears later at time t.
16. -5,850 N
17. c) An object accelerates from 1 m/s^2 to 2 m/s^2.
18. The ball exerts a reaction force on him as it is being thrown.
19. Cambridge
20. Calculus
21. kg X m/s^2
22. Newton's second law of motion
23. d) She must apply force with her skates to turn or to stop.
24. c) The floor pushes back upward on the player with a force of 1,400 Newtons, which lifts the player off the ground.
25. c) The net force is positive, and acceleration and speed are also positive.
26. Any action that could change the motion of an object.
27. b) Mass is a measure of an object's resistance to acceleration.
28. Has a greater acceleration than the truck because the car has a smaller mass.
29. Mass
30. Cart #1 has half the mass of cart #2.
31. The same force causes the same acceleration in both objects.
32. Continue in the same direction with the same speed.
33. An acceleration of 1 m/s^2 of an object with a mass of 1 kilogram.
34. The ball exerts a force on his foot as a reaction to the force of his foot on the ball.
35. Newton's first law of motion