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Motion — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMotion1 Mark
MCQ
When an object is accelerated:
  • A
    Its direction must be constant
  • ✓
    Its velocity is necessarily changing
  • C
    Its velocity is constant
  • D
    Its speed is necessarily changing
✓

Answer

Correct option: B.
Its velocity is necessarily changing
Acceleration is the time rate of change of velocity

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