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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A block of mass m is kept on rough horizontal turn table at a distance r from the centre of table. The coefficient of friction between turn table and block is μ. Now the turn-table starts rotating with uniform angular acceleration α. a. Find the time after which slipping occurs between block and turn-table. b. Find the angular made by friction force with velocity at the point of slipping.

A block of mass m is kept on rough horizontal turn table at a distance r from the centre of table. The coefficient of friction between turn table and block is μ. Now the turn-table starts rotating with uniform angular acceleration α. a. Find the time after which slipping occurs between block and turn-table. b. Find the angular made by friction force with velocity at the point of slipping.

A hemispherical bowl of radius R is rotating about its axis of symmetry which is kept vertical. A small ball kept in the bowl rotates with the bowl without slipping on its surface.