find the gravitational force of attraction between a uniform sphere of mass M and a uniform rod of length L and mass m, placed such that r is the distance between the centre of the sphere and the near end of the road.

The gravitational force of attraction between a uniform sphere of mass M and a uniform rod of length l and mass in as shown in figure is

Find the force of attraction between a solid sphere of mass M and a ring of mass m as shown.

Two spheres of uniform density have masses 10 kg and 40 kg. The distance between the centres of the spheres is 200 m. Find the gravitatioanl force between them.

The gravitational field due to an uniform solid sphere of mass M and radius a at the centre of the sphere is

Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If sqrt8R is the distance between the centres of a ring (of mass 'm') and a sphere (mass "M") where both have equal radius "R'

Two uniform thin rods each of length L and mass m are joined as shown in the figure. Find the distance of centre of mass the system from point O

Calculate the force of attraction between a sphere of mass 40 kg and another sphere of mass 80 kg with their centres 30 cm apart.

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 uniform rig of mas m and radius a is placed directly above a uniform sphre of mass M and of equyal radius. The centre of the ring is at a distance sqrt3 a from the centre of the sphere. Find the gravitational foerce exerted by the sphere on the ring.