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Question 5235
NEET Physics · Hard

Motion in a Straight Line: Non-Uniform Acceleration MCQ

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Non-Uniform AccelerationHardQuestion 5235

Question

A particle at rest starts moving with acceleration a = (4 − t) m/s². At what time does the velocity become maximum?
  1. A
    2 s
  2. B
    4 s
    Correct
  3. C
    1 s
  4. D
    8 s

Correct answer

4 s

Explanation

Velocity is maximum when a = 0: 4 − t = 0 → t = 4 s. After this, a becomes negative and velocity decreases.

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