A boy of mass `m` is standing on a block of mass `M` kept on a rough surface. When the boy walks from left to right on the block, the centre of mass (boy + block) of system :

A boy of mass m is standing on a block of mass M kept on a rough surface. When the boy walks from left to right on the block, the centre of mass (boy + block) of the system :

A boy of mass m is standing at one end of a boat of mass M and length l. The boy walks to the other end, the displacement of the

In a free space a rifle on mass M shoots a bullet of mass m at a stationary block of mass M distance D away from it . When the bullet has moved through a distance d towards the block the centre of mass of the bullet - block system is at a distance of :

In a free space a rifle on mass M shoots a bullet of mass m at a stationary block of mass M distance D away from it . When the bullet has moved through a distance d towards the block the centre of mass of the bullet - block system is at a distance of :

A block of mass m is at rest over the rough surface of the fixed wedge.

A boy of mass 50kg is standing at one end of a boat of length 9m and mass 400kg . He runs to the other end. The distance through which the centre of mass of the boat boy system moves is

A block of mass 'm' is placed on wedge of mass 'M'. If all the surfaces are smooth Normal reaction between the wedge and block is

A block of mass m is placed on a triangular block of mass M(M = 2m) , as shown. All surfaces are smooth. Calculate the velocity of triangular block when the smaller block reaches at bottom.

A block of mass m is placed on a triangular block of mass M(M = 2m) , as shown. All surfaces are smooth. Calculate the velocity of triangular block when the smaller block reaches at bottom.

A small block of mass m starts sliding down from rest along the smooth surface of a fixed hollow hemisphere of same mass m. Find the distance of centre of mass of block and hemishere from centre of hemisphere C when block m separates from the surface of hemisphere.