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JEE Main2005PhysicsLaws of MotionActual

The upper half of an inclined plane with inclination is perfectly smooth while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom if the coefficient of friction for the lower half is given by

Options

  1. A2
  2. B2
  3. C2

Correct answer

C. 2

Step-by-step solution

m g s = m g s 2

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