Find the gravitational interaction energy of system consisting of a disc of mass M, radius R and a small mass m dituated at a distance x from disc centre on its axis as shown in figure.

Find the gravitational potential energy of a system consisting of a uniform rod AB of mass M, length l and a point mass m as shown in figure.

A small smooth disc of mass m and radius moving with an initial velocity 'v' along the positive x- axis collided with a big disc of mass 2m and radius 2r which was initially at rest with its centre at origin as shown in figure. If the coefficient of restitution is 0 then velocity of largen disc after collision is

Find the intensity of gravitational field at a point lying at a distance x from the centre on the axis of a ring of radius a and mass M .

A mass m is placed at point P lies on the axis of a ring of mass M and radius R at a distance R from its centre. The gravitational force on mass M is

Calculate gravitational field intensity at a distance x on the axis from centre of a uniform disc of mass M and radius R .

The moment of inertia of a disc of mass M and radius R about an axis. Which is tangential to sircumference of disc and parallel to its diameter is.

Calculate the moment of inertia of a disc of radius R and mass M, about an axis passing through its centre and perpendicular to the plane.