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 Forces

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 constant force of 20N is applied to pull a body of mass 10 k, kept on a smooth horizontal surface. What is the increase in its kinetic energy if the body starts from rest and covers a distance of 5m?

The sign of work done by a force is important to understant. State carefully if the following quantities are positive or negative. (a) Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket. (b) Work done by the gravitational force in the above case. (c ) Work done by friction on a body sliding down an inclined plane. (d) Work done by an applied froce on a body moving on a rough horizontal plane with uniform velocity. (e ) Work done by the resistive force of air on a vibrating pendulum in bringing it to rest.

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 ?

A block of mass m is on the smooth horizontal surface of a plank of mass M The plank is on smooth horizontal surface Now, a constant horizontal force F acts on M. Now, for a person standing on the ground:

" A ball is moving on a perfectly smooth horizontal surface If no force is applied on it,its speed "

A block of mass m is pulled slowly by a minimum constant force on a rough ( mu ) horizontal surface through a distance x. Find work done by force F.