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Motion — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMotion1 Mark
Question

A freely falling object travels 4.9m in 1st second, 14.7m in 2nd second, 24.5m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of:

  1. Uniform motion.
  2. Uniform acceleration.
  3. No acceleration.
  4. Uniform velocity.
✓

Answer

  1. Uniform acceleration.

Explanation:

The displacement of the body in equal interval of time is unequal, but acceleration is constant. The acceleration will thus be uniform.

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