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Misr
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My book
If an egg falls from a height to a metal surface it surely smashes but if it falls from the same height onto a cushion it doesn't smash although the linear momentum and consequently the impulse is the same since the terminal velocity of the egg is zero in both cases.
The reason for this is the contact time when the egg hits the metal surface is so short and then the force is great sufficient to break the egg.
Why??although the linear momentum and consequently the impulse is the same since the terminal velocity of the egg is zero in both cases.
Why does the time affect velocity in this case not force (as in first case)?1- A tennis player is aware that he must appky a follow through to elongate the time interval in which the ball is in contact with the racket.This increase the impulse and hence the velocity is increased to cover a larger distance.
Thanks