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0 votes
45.4k views
in Physics by (106k points)

A hemispherical bowl of radius R is rotated about its axis of symmetry which is kept vertical. A small block is kept in the bowl at a position where the radius makes an angle θ with the vertical. The block rotates with the bowl without any slipping. The friction coefficient between the block and the bowl surface is μ . Find the range of the angular speed for which the block will not slip.

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1 Answer

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by (32.5k points)

If the bowl rotates at maximum angular speed, the block tends to slip upwards. So, the frictional force acts downward.

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