A lead ball strikes a wall and falls down. A tennis ball having the same mass and velocity strikes the same wall and bounces back. Which is the correct statement?
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a
The tennis ball suffers a greater change in momentum.
b
The lead ball suffers a greater change in momentum.
c
Both the balls suffers equal change in momentum.
d
The momentum of lead ball is greater than that of tennis ball.
answer is A.
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Detailed Solution
Change in momentum of the tennis ball = mu - (-mu) = 2muChange in momentum of the lead ball = mu - 0 = mu