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Motion — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceMotion1 Mark
MCQ
The velocity of a body can change:
  • A
    If its acceleration is zero.
  • B
    If its acceleration is non-zero.
  • C
    Both A & B
  • D
    None of the above.
✓

Answer

  1. If its acceleration is non-zero.

Explanation:

Acceleration is defined as change of velocity in unit time.

So if acceleration is zero, there is no change of velocity, the body is moving with a constant velocity.

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