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MHT CET2012PhysicsLaws of Motion

A body weighing 20 ~kg just slides down a rough inclined plane that rises 5 in 12 . The coefficient of friction is

Options

  1. A0.46
  2. B4.6
  3. C0.52
  4. D0.12

Correct answer

A. 0.46

Step-by-step solution

The given situation can be shown as As the plane rises 5 in 12 = 5 12 and = 1- ² = 1+ ( 5 12 )² = 119 12 So, the coefficient of friction, = = = 5 12 12 119 = 5 119 =0.46

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