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Friction — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceFriction1 Mark
MCQ
When a coin and a feather are dropped simultaneously from the same height, the coin strikes the ground first. Why?
  • A
    Gravitational force is less in the case of the coin.
  • B
    Mass of coin is less.
  • ✓
    Frictional force is less in the case of the coin.
  • D
    Magnetic force is stronger in the case of the coin.
✓

Answer

Correct option: C.
Frictional force is less in the case of the coin.
Due to larger surface area, the feather faces more air resistance $($friction by air$)$ and hence slows down, while the coin moves faster and touches the ground faster.

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