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A particle of mass m=0.1 kg is released ...

A particle of mass `m=0.1 kg` is released from.rest from a point `A` of a wedge of mass `M=2.4kg`. The wedge is free to slide on a frictionless horizontal plane. The particle slides down the smooth face `A B` of the wedge. When the velocity of the wedge is `0.2 m / s`, the velocity (in `m / s` ) of the particle relative to the wedge is
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