Find an expression for the work done against friction when a body is made to slide up an inclined plane.

Find an expression for the work done against friction when a body is made to slide down an inclined plane?

The work done by kinetic friction on a body :

Find an expression for the work done in sliding a body over a rough horizontal surface.

Derive an expression for the work done when a body slides down a rough inclined plane.

The work done by a body against friction always results in

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.

Obtain an expression for the acceleration of a body sliding down a rough inclined plane.

When a body is thrown up, work done by gravity on the body is