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[" A body of mass "m" moving with veloci...

[" A body of mass "m" moving with velocity v collides "],[" head on elastically with velocity v collides "],[2m" which is initialty at rest.The ratic of KE of "],[" colliding body before and after collision will be "],[[" (A) "1:1," (B) "2:1],[" (C) "4:1," (D) "1:9]]

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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

A body of mass m moving with velocity v collides head on with another body of mass 2 m which is initially at rest. The ratio of K.E. of colliding body before and after collision will be

A body of mass m moving with velocity v collides head on with another body of mass 2 m which is initially at rest. The ratio of K.E. of colliding body before and after collision will be