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
Mohit Kumar , 12 Years ago
Grade 12
2 Answers
Chetan Mandayam Nayakar
Last Activity: 12 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
Last Activity: 12 Years ago
answer:- A (Mgh/2)
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