A HEMISPHERICAL BOWL OF RADIUS R IS ROTATED ABT ITS AXIS OF SYMMETRY WHICH IS KEPT VERTICAL.A SMALL BLOCK IS KEPTON THE BOWL IN THE POSITION WHERE THE RADIUS MAKES AN ANGLE@ WITH THE VERTICAL.THE BLOCK ROTATES IN THE BOWL WITHOUTH SLIPPING.THE FRICTION COEFFICIENT BETWEEN THE BLOCK AND THE BOWL IS u.FIND THE RANGE OF ANGULAR SPEED FOR WHICH THE BLOCK WILL NOT SLIP.PLS SOLVE IT IN DETAIL
PLS EXPLN IN DETAI AT WHICH ANGLE AND DIRECTION WILL THE FRICTIONAL FORCE ACT