JEE Main 20265 Apr, Evening shiftPhysicsMediumWork, Energy and Power70× since 2002
A mass of 1 kg is kept on a inclined plane with inclination with respect to horizontal plane and it is at rest initially. Then the whole assembly is moved up with constant velocity of 4 m/s. The work done by the frictional force in time 2 s is ______ J. (Take )