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Question 30213
JEE Physics · Medium

Laws of Motion and Friction: Atwood Machine MCQ

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Atwood MachineMediumQuestion 30213

Question

In an Atwood machine, masses m₁ and m₂ (m₁ > m₂) are connected over a massless pulley. The acceleration is:
  1. A
    (m₁+m₂)g/(m₁−m₂)
  2. B
    (m₁−m₂)g/(m₁+m₂)
    Correct
  3. C
    g
  4. D
    g/2

Correct answer

(m₁−m₂)g/(m₁+m₂)

Explanation

Net force = (m₁−m₂)g, total mass = m₁+m₂. Acceleration a = (m₁−m₂)g/(m₁+m₂).

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