A body of mass `0.3kg` is taken  up an inclined plane of length `10m` and
Channel: Doubtnut
Date: 2020-07-26

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 ?