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Q.

A particle is placed at rest inside a hollow hemisphere of radius R. The coefficient of friction between the particle and the hemisphere is μ=13. The maximum height up to which the particle can remain stationary is

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a

R2

b

1−32R

c

32R

d

3R8

answer is B.

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Detailed Solution

h=R−Rcos⁡θ;μ=Tan⁡θ
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