Three solid spheres each of mass `m` and radius `R` are released from the position shown in Fig. What is the speed of any one sphere at the time of collision?

Three solid spheres of mass M and radius R are placed in contact as shown in figure. Find the potential energy of the system ?

The M.I. of solid sphere of mass M and radius R about its diameter is

A solid sphere of mass M and radius R is pulled by a force F as shown in figure . If the sphere does not slip over the surface , then frictional force acting on the sphere is

Three spheres, each mass M and radius R, are arranged as shown in the figure . The moment of inertia of the system will be

A solid sphere of mass m and radius R is rolling without slipping as shown in figure. Find angular momentum of the sphere about z-axis.

Three identical spheres each of mass m and radius R are placed touching each other so that their centres A,B and C lie on a straight line. The position of their centre of mass from centre of A is

A solid ball of mass m and radius R is released from the position shown in a large hollow shell of same mass m and radius 3R as shown in figure. The displacement of the centre of mass of the system from its initial position when the solid ball ball touches the lower surface of the hollow shell is : (centres of both the spheres coincide intially) :

A solid sphere of mass M and radius R is pulled horizontally on a rough surface as shown in Fig. Choose the incorrect alternatives.