QOTD 1 : Friction and slipping in a hemispherical bowl

  • #1
Here's the first QOTD. Please read my other post. Do contribute misconceptions, heuristics and points to ponder.

Homework Statement


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 theta with the vertical.

The block rotates with the bowl without any slipping. The friction coefficient between the block and the bowl surface is mu. Find the angular speed for which the block will not slip.
 

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