Chapter 9.1, Problem 1EYU

Enhance Your Understanding

(Answers given at the end of the chapter)

1. A block of wood is struck by a bullet. (a) Is the block more likely to be knocked over if the bullet is metal and embeds itself in the wood, or if the bullet is rubber and bounces off the wood? (b) Choose the best explanation for your prediction from among the following:

1. I.                    The change in momentum when a bullet rebounds is larger than when it is brought to rest.
2. II.                 The metal bullet does more damage to the block.
3. III.              The rubber bullet bounces off and hence it has little effect.