1.

A body of mass 10gm moving with velocity 5ms^(-1) collides with another body of mass 15gm moving with 3ms^(-1) in the same direction. After collision if they stick and move together, the loss of kinetic energy of the system is

Answer»

12J
`12 xx 10^(-3)J`
`24 xx 10^(-3)J`
`192 xx 10^(-3)J`

ANSWER :B


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