A block of mass m=2kg is pulled by a force f=40 N upwards through a height h=2m find the work done on the bock by the applied force f and its weight mg> (take g=10m/*^2).
Given:
Mass of block = 2Kg
F = 40 N
h = 2m
Work done by the force F = Fh = 402= 80 Joule and,
Work done by weight mg = -mgh = -2102 = -40 J