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A long horizontal rod has a bead which c...

A long horizontal rod has a bead which can slide along its length and is initially placed at a distance L from one end A of the rod. The rod is set in angular motion about A with a constant angular acceleration, `alpha`. If the coefficient of friction between the rod and bead is `mu`, and gravity is neglected, then the time after which the bead starts slipping is :

A

`sqrt((mu)/(alpha))`

B

`(mu)/(sqrt(alpha))`

C

`(1)/(sqrt(mu alpha))`

D

infinitesimal

Text Solution

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The correct Answer is:
d
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