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Laws of Motion
Question
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A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3 M and a body C of mass 2/3 M. The centre of mass of bodies B and C taken together shifts compared to that of body A towards

  • depends on height of breaking

  • does not shift

  • body C

  • body B

Answer

B.

does not shift

No horizontal external force is acting
∴ = acm =0
since vcm= 0
∴∆xcm = 0

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