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Question 30273
JEE Physics · Medium

Laws of Motion and Friction: Applied Force — Acceleration Change MCQ

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Applied Force — Acceleration ChangeMediumQuestion 30273

Question

A 4 kg block accelerates at 3 m/s² under force F. If mass is doubled and F is halved, the new acceleration is:
  1. A
    6 m/s²
  2. B
    0.75 m/s²
    Correct
  3. C
    3 m/s²
  4. D
    1.5 m/s²

Correct answer

0.75 m/s²

Explanation

Original: F = 4×3 = 12 N. New: a = (F/2)/(2m) = 6/8 = 0.75 m/s².

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