List of top Physics Questions on work asked in MET

A force \( F = (2 + x) \) acts on a particle in x-direction, where \(F\) is in newton and \(x\) in metre. The work done during displacement from \(x=1\) m to \(x=2\) m is:

A large slab of mass 5 kg lies on a smooth horizontal surface, with a block of mass 4 kg lying on the top of it; the coefficient of friction between the block and the slab is 0.25. If the block is pulled horizontally by a force of \(F = 6\) N, the work done by the force of friction on the slab between the instants \(t = 2\) s and \(t = 3\) s is