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Centre of Mass, Linear Momentum, Collision — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsCentre of Mass, Linear Momentum, Collision1 Mark
Question
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:
  1. Heavier piece.
  2. Lighter piece.
  3. Does not shift horizontally.
  4. Depends on the vertical velocity at the time of breaking.
✓

Answer

  1. Does not shift horizontally.
Explanation:
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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