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An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle ex with the vertical, the maximum possible value of is given by
detailed solution
Correct option is A
α = angle of reposemgsinα=μmg cosα⇒ tanα=μ=13∴ cotα=3Talk to our academic expert!
Similar Questions
A particle is placed at rest inside a hollow hemisphere of radius R. The coefficient of friction between the particle and the hemisphere is . The maximum height up to which the particle can remain stationary is
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