A body of mass m is at rest. Another body of same mass moving with vel – McqOptions

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1.	A body of mass m is at rest. Another body of same mass moving with velocity V makes head on elastic collision with the first body. After collision the first body starts to move with velocity [Orissa PMT 2004]
A.	V
B.	2V
C.	Remain at rest
D.	No predictable
Answer» B. 2V

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