Work done by the gravitational force on a body of mass `''m''` moving on a smooth horizontal surface through a distance `'s'` is

Work done by gravitational force on a freely falling body ………….

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

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

The work done by gravitational force on a point mass m_0 in moving from the surface of a planet off mass M and radius R to a height R/2 is

The work done by gravitational force on a point mass m_0 in moving from the surface of a planet off mass M and radius R to a height R/2 is

A force acts for 8 s on a body of mass 5 kg at rest,on a smooth horizontal surface.The force then stops acting and the body describes 80 m in next 5 s .The force acting on body is

A horizontal force F pushes wedge of mass M on a smooth horizontal surface. A block of mass m is stationary to the wedge, then:

A force acts for 8 s on a body of mass 5kg at rest,on a smooth horizontal surface.The force then stops acting and the body describes 80m in next 5s .The force acting on body is ?