Answer:
14. c. exerts an equal force back on the hammer.
15. d. The book well remain at rest if the net force is zero.
16. a. inertia
17. a. increase
18. c. mass
19. d. The truck will have the same kinetic energy.
20. a. A car on a top of a hill.
21. a. mass,height
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Answer:
14. c. exerts an equal force back on the hammer.
15. d. The book well remain at rest if the net force is zero.
16. a. inertia
17. a. increase
18. c. mass
19. d. The truck will have the same kinetic energy.
20. a. A car on a top of a hill.
21. a. mass,height