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, . If the coefficient of friction between the rod and bead is , and gravity is neglected, then the time after which the bead starts slipping is

- infinitesimal

#### Answer:The correct answer is:

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### Related Questions to study

A insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the surface and the insect is . If the line joining the centre of the hemispherical surface to the insect makes an angle a with the vertical, the maximum possible value of is given :

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=

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=

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_{max}

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#### If the sides a, b, c of a triangle are in G.P. and largest angle exceeds the smallest by , then

A

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A