What is gravitational force?

A body weighs 63 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth ?

Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centres of the spheres ? Is an object placed at that point in equilibrium? If so, is the equilibrium stable or unstable ?

What is gravitational potential? What are its units and dimensions?

Show that gravitational force is a conservative force.

Write characteristics of gravitational force.

Which exchange particles are involved in gravitational force?

A mass of 10 kg is at a point A on a table. It is moved to a point B. If line joining A and B is horizontal, what is the work done on the object by gravitational force ? Explain your answer.

The earth's gravitational force an acceleration of 5ms^-2 on a 1kg mass somewhere in the space. How much will be the accleration of a 3kg mass at that place ?