A body of mass `0.3kg` is taken up an inclined plane of length `10m` and height `5m,` and then allowed to slide down to the bottom again. The coefficient of friction between the body and the plane is `0.15`.
What is the
(a) work done by the gravitational force over the round trip ?
(b) work done by the applied force on the upward journey ?
(c) work done by the frictional force over the round trip ,
(d)kinetic energy of the body at the end of the trip ?

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

A block of mass 6.0 kg is pushed up an incline to its top by a man and then allowed to slide down to the bottom. The length of incline is 10 m and its height is 5.0 m. the coefficient of friction between block and incline is 0.40. Calculate (a) the work done by the gravitational force over the complete round trip of the block, (b) the work done by the man during the upward journey, (c) the mechanical energy loss due to friction over the round trip, and (d) the speed of the block when it reaches the bottom.

A body of mass m is pushed with the initial velocity v_(0) up an inclined plane of angle of inclination theta . The co-efficient or friction between the body and the plane is mu . What is the net work done by fnction during the ascent of the body before it comes to stop ?

A body of mass m slides down an inclined plane making an angle of 45^(@) with the horizontal. If the coefficient of friction between the body and the plane be 0.3, the acceleration of the body is approximately equal to :

A block of mass m slides down a rough inclined plane of inclination theta with horizontal with zero initial velocity. The coefficient of friction between the block and the plane is mu with theta gt tan^(-1)(mu) . Rate of work done by the force of friction at time t is

A block of mass 10 kg slides down on an incline 5 m long and 3 m high. A man pushes up on the ice block parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and the incline is 0.1. Find : (a) the work done by the man on the block. (b) the work done by gravity on the block. (c) the work done by the surface on the block. (d) the work done by the resultant forces on the block. (e) the change in K.E. of the block.