The total amount of work that must be done on a body of mass m so that it escapes from the gravitational influence of a planet of radius R and mass M is given by

If M be the mass of the earth, R its radius (assumed spherical) and G gravitational constant, then the amount of work that must be done on a body of mass m, so that it completely escapes from the gravity of the earth of the earth is given by

If M be the mass of the earth, R its radius (assumed spherical) and G gravitational constant, then the amount of work that must be done on a body of mass m, so that it completely escapes from the gravity of the earth of the earth is given by

What will be the gravitational potential on the surface of a planet of mass M and radius R ?

How much work is done on a body of mass m in moving it around a horizontal circle of radius R?

What is the work done on a body of mass m moving around a horizontal circle of radius r?

The amount of work done in lifting a body of mass 'm' from the surface of the earth to a height equal to twice the radius of the earth is,