A body of mass m moving along a straight line collides with a body of mass nm which is also moving with a velocity kv in the same direction. If the first body comes to rest after the collision, then the velocity of second body after the collision would be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Initial momentum = 
and final momentum 
By the conservation of momentum,
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
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