An object of mass m is slowly pushed some partway up a verticle up a verticle loop ending at a point a height `h lt R` above the bottom. The coefficient of friction between the object and the track is a constant mu. Find work that has to be done against friction.

A body of mass m is moved up (slowly) the plane of verying slope by a tangential force upto height h . The coefficient of friction between the surface and the block is mu . Select correct option(s)

A body of mass m is moved up (slowly) the plane of verying slope by a tangential force upto height h . The coefficient of friction between the surface and the block is mu . Select correct option(s)

A body of mass m is moved up (slowly) the plane of verying slope by a tangential force upto height h . The coefficient of friction between the surface and the block is mu . Select correct option(s)

A body of mass m is moved up (slowly) the plane of verying slope by a tangential force upto height h . The coefficient of friction between the surface and the block is mu . Select correct option(s)

A body is moving up an inclined plane of angle theta with an initial kinetic energy E. The coefficient of friction between the plane and the body is mu . The work done against friction before the body comes to rest is

A body of mass 0.3 kg is taken up an inclined plane of length 10 m and height 5 m and then allowed to slide down to the bottom again. Coefficient of friction between the body and the plane is 0.15. What is the Work done against the frictional force over the round trip?

A block of mass m is pushed momentarily along a horizontal surface with an initial velocity u. If mu_k is the coefficient of kinetic friction between the object and surface, find the time at which the block comes to rest.

A body of mass 0.5 kg is taken up an inclined plane of length 10 m and height 5 m and then allowed to slide down to the bottom again. The coefficient of friction between the body and the plane is 0.1. The work done by the frictional force over the round trip is