Why does an opened door vibrate when hit with a tennis ball and not go backwards without vibrating?
Asked by | 28th Jul, 2008, 10:08: PM
If the ball is heavy, like a foot ball, and if the impact is strong , the door will be pushed back. Here there are two reasons for the door not going back:
1. The mass of the ball is less when compared to that of the door.
2.The collision (contact ) with the door was inelastic.
Answered by | 30th Jul, 2008, 06:54: AM
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