A block 'B' rests on 'A' A rests on a horizontal surface 'C' which is frictionless. There is friction between `A` and `B` If 'B' pulled to the right .

A block 'B' rests on 'A. A rests on a horizontal surface 'C which is frictionless. There is friction between A and B. If 'B' is pulled to the right

A block 'B' rests on 'A'. A rests on a horizontal surface 'C which is frictionless. There is friction between A and B. If 'B' is pulled to the right, (If P is less than frictional force between A and B)

A block 'B' rests on 'A'. A rests on a horizontal surface 'C which is frictionless. There is friction between A and B. If 'B' is pulled to the right, (If P is less than frictional force between A and B)

A cubical block of mass 'm' rests on rough horizontal surface. mu is coefficient of static friction between block and the surface. A force "mg" acting on cube at an angle " theta " with vertical side of cube pulls the block. If the block is to be pulled along the surface then the value of cot (theta//2) is