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Question 30564
JEE Physics · Medium

Center of Mass, Momentum and Collision: JEE — Impulse Duration MCQ

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JEE — Impulse DurationMediumQuestion 30564

Question

A force impulse of 12 N·s acts on a 3 kg body initially at rest. Its final speed is:
  1. A
    36 m/s
  2. B
    4 m/s
    Correct
  3. C
    9 m/s
  4. D
    0.25 m/s

Correct answer

4 m/s

Explanation

J = Δp = mv − 0 → 12 = 3v → v = 4 m/s.

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