JEE Main · PhysicsHard
A uniform solid sphere of mass and radius is projected along a rough horizontal surface with an initial linear velocity and zero angular velocity. If the coefficient of kinetic friction is , the time taken for the sphere to start pure rolling is
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: A —
Solution
The friction force provides a deceleration and an angular acceleration . Setting yields .
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