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A block of mass m moving with speed v collides with another block of mass 2m at rest. The lighter block comes to rest after the collision. The coefficient of restitution is

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By Expert Faculty of Sri Chaitanya
a
1/2
b
1/3
c
1/4
d
1/5

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detailed solution

Correct option is A

mv=2mv2v2=v2
e=v2-v1u1-u2=v2-0v-0=12


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