A body of mass m moving with velocity v collides head on with another – McqOptions

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1.	A body of mass m moving with velocity v collides head on with another body of mass 2m which is initially at rest. The ratio of K.E. of colliding body before and after collision will be [Roorkee 1982]
A.	1 : 1
B.	2 : 1
C.	4 : 1
D.	9 : 1
Answer» E.

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