1.

A body of mass 5 kg moving with a velocity 10m/s collides with another body of the mass 20 kg at, rest and comes to rest. The velocity of the second body due to collision is               [Pb. PMT 1999; KCET 2001]

A.          2.5 m/s
B.                       5 m/s
C.          7.5 m/s
D.                       10 m/s
Answer» B.                       5 m/s


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