JEE Physics · Hard

Laws of Motion and Friction: Monkey and Rope MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Monkey and RopeHardQuestion 30246

Question

A monkey of mass 20 kg holds a rope that goes over a pulley to a 20 kg counterweight. To climb up, the monkey must pull the rope with a force:
  1. A
    Less than 200 N
  2. B
    Equal to 200 N
  3. C
    More than 200 N
    Correct
  4. D
    Zero

Correct answer

More than 200 N

Explanation

For the monkey to accelerate upward, tension T > mg = 200 N. The same tension T pulls the counterweight up. If T > 200 N, both accelerate upward — monkey's effort exceeds the weight.