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A body of mass M kg is falling from a height h meters hits another body of mass M kg placed on sandy patch of ground at rest and sticks to it. The work done before the combined mass comes to rest after penetrating a depth d in the sand will be A)Mgh/2 B)2Mgh?2?/d C)Mgh?2?/d D)Mgd?2?/h plzz reply fast

A body of mass M kg is falling from a height h meters hits another body of mass M kg placed on sandy patch of ground at rest and sticks to it. The work done before the combined mass comes to rest after penetrating a depth d in the sand will be

A)Mgh/2

B)2Mgh?2?/d

C)Mgh?2?/d

D)Mgd?2?/h

plzz reply fast

Grade:12

2 Answers

Chetan Mandayam Nayakar
312 Points
8 years ago

the collision between the two bodies is perfectly inelastic. Therefore, kinetic energy immediately after collision=Mgh/2

therefore answer=A)Mgh/2

VARA PRASAD
31 Points
8 years ago

    answer:- A (Mgh/2)

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