A disc of given some velocity up the incline so that it goes up, stops momentarily and comes down the incline. The disc never slips during its entire motion. The force of friction

A block is pushed up a rough inclined plane of 45^(@) with a velocity u. The block rises up and then comes down sliding to have a velocity u/2 at the bottom. The coefficient of sliding friction between block and the plane is

A block is pushed with some velocity up a rough inclined plane. It stops after ascending few meters and then reverses its direction and returns back to point from where it started. If angle of inclination is 37^(@) andthe time to climb up is half of the time to return back then coefficient of friction is:

A disc of mass m slides with the zero initial velocity down an inclined plane of inclination theta to the harizontal, having traveled the distance d along the horizontal plane, the disc stops. Find the work performed by the friction over the whole distance, assuming the friction coefficient mu for both the inclined and horizontal planes.

A block moves down a smooth inclined plane of inclination theta . Its velocity on reaching the bottom is v. If it slides down a rough inclined plane of some inclination, its velocity on reaching the bottom is v/n, where n is a number greater than 0. The coefficient of friction is given by -

A block moves down a smooth inclined plane of inclination theta . Its velocity on reaching the bottom is v. If it slides down a rough inclined plane of some inclination, its velocity on reaching the bottom is v/n, where n is a number greater than 0. The coefficient of friction is given by -

Uniform ring of radius R is moving on a horizontal surface with speed v and then climbs up a ramp of inclination 30^(@) to a height h. There is no slipping in the entire motion. Then h is