A ball of mass m falls vertically to the ground from a height h 1 and rebound to a height 
. The change in momentum of the ball on striking the ground is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
When ball falls vertically downward from height 
its velocity 
and its velocity after collision 
Change in momentum
(because 
and 
are opposite in direction)
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