The escape velocity form the centre of a unifrom ring of mass M and radius R is :

For a uniform ring of mass M and radius R at its centre

For a uniform ring of mass M and radius R at its centre

Find potential at a point 'P' at a distance 'x' on the axis away from centre of a uniform ring of mass M and radius R .

Find potential at a point 'P' at a distance 'x' on the axis away from centre of a uniform ring of mass M and radius R .

The escape velocity corresponding to a planet of mass M and radius R is 50 km s^(-1) . If the planet's mass and radius were 4M and R , respectively, then the corresponding escape velocity would be

The escape velocity corresponding to a planet of mass M and radius R is 50 km s^(-1) . If the planet's mass and radius were 4M and R , respectively, then the corresponding escape velocity would be

The escape velocity of a particle of mass m is

A particle of mass m is placed at the centre of a unifrom spherical shell of mass 3 m and radius R The gravitational potential on the surface of the shell is .