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A tennis ball is thrown against a wall and rebounced. M(mass of wall)*v (for ball) =2*m(mass...

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Physics

A tennis ball is thrown against a wall and rebounced. M(mass ofwall)*v (for ball) =2*m(mass of ball) * V(for wall), KE(wall)=1/2 *Mv2; KE(in)=1/2 *mV2 and

KE(out)=1/2 *mV2+1/2*Mv2 ; IfKE(in)=KE(out), Where did 1/2*Mv2 go? Is the KEconderved? Prove it.

Answer & Explanation Solved by verified expert
3.9 Ratings (707 Votes)
The scenario put by you is that of a collision between the wall and the ball In general we can view this as head on collision between a small and a massive object now your query is where did 12 M v22 go 12 M    See Answer
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