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Systems of Particles and Rotational Motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsSystems of Particles and Rotational Motion1 Mark
MCQ
A body falling vertically downwards under gravity breaks in two parts of unequal masses. The centre of mass of the two parts taken together shifts horizontally towards:
  • A
    Heavier piece.
  • B
    Lighter piece.
  • ✓
    Does not shift horizontally.
  • D
    Depends on the vertical velocity at the time of breaking.
✓

Answer

Correct option: C.
Does not shift horizontally.
As the body falls vertically downwards, no external force acts in the horizontal direction.
Hence, the centre of mass does not shift horizontally.

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