Trying to Stop Rolling Balls
Think about the question below. Only one of the answers listed is correct. We'll do some (but probably not all) of these questions in the lectures when you will all be asked to vote on which answer you think is correct. (Soon afterwards, you'll be able to see your responses, and those of the whole class at EVAF.)
Suppose a ping-pong ball and a bowling ball are rolling towards you. Both have the same momentum, and you exert the same force to stop each. How do the distances needed to stop them compare?
1 | It takes a shorter distance to stop the ping-pong ball. |
2 | Both take the same distance |
3 | It takes a longer distance to stop the ping-pong ball |