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Question 30224
JEE Physics · Medium

Laws of Motion and Friction: Pulley System MCQ

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Pulley SystemMediumQuestion 30224

Question

A 4 kg and 6 kg mass are connected by a string over a frictionless pulley. The acceleration and tension are:
  1. A
    a = 2 m/s², T = 48 N
    Correct
  2. B
    a = g, T = 0
  3. C
    a = 2 m/s², T = 32 N
  4. D
    a = 10 m/s², T = 60 N

Correct answer

a = 2 m/s², T = 48 N

Explanation

a = (m₂−m₁)g/(m₁+m₂) = (6−4)×10/10 = 2 m/s². T = m₁(g+a) = 4×12 = 48 N.

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