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Question 30259
JEE Physics · Medium

Laws of Motion and Friction: JEE — FBD Incline MCQ

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JEE — FBD InclineMediumQuestion 30259

Question

A block (mass m) on a rough incline (angle 37°, μₖ = 0.5) is released from rest. The acceleration (take sin37°=0.6, cos37°=0.8, g=10) is:
  1. A
    2 m/s²
    Correct
  2. B
    1 m/s²
  3. C
    6 m/s²
  4. D
    4 m/s²

Correct answer

2 m/s²

Explanation

a = g(sinθ − μₖcosθ) = 10(0.6 − 0.5×0.8) = 10(0.6−0.4) = 2 m/s².

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