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JEE Advanced2006PhysicsRotational MotionActual

A solid sphere is in pure rolling motion on an inclined surface having inclination .

Options

  1. Africtional force acting on sphere is f= m g
  2. Bf is disspative force
  3. Cfriction will increase its angular velocity and decreases its linear velocity
  4. DIf decreases, friction will decrease

Correct answer

C. friction will increase its angular velocity and decreases its linear velocity

Step-by-step solution

In case of pure rolling, aligned & f= m g 1+ m R^2 I & f aligned (upwards) Therefore, as decreases force of friction will also decrease.

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