Questions
A metal ball hits a wall and does not rebound whereas a rubber ball of the same mass on hitting the wall with the same velocity rebounds back. It can be concluded that
detailed solution
Correct option is B
The change in momentum of metal ball after the collision with a wall is Δp=m(v2−v1)=m(0−v1)=−mv1 The change in momentum in rubber wall isΔp'=m(v2'−v1)=m(−v1−v1)=−2mv1 (∵v2'=−v1) Hence Δp'>ΔpTalk to our academic expert!
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A tennis ball is released from height h above ground level. If the ball makes inelastic collision with the ground, to what height will it rise after third collision
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