Question

An athlete lifts a barbell at a constant speed vertically from the ground to a position over their head at a distance of 2.2 m from the floor.  If the barbell has a mass of 28.5 kg, how much work does the athlete do on the barbell?

Answer 1

$$W=Fh=mgh=28.5\ kg\cdot9.8\ kg\cdot2.2\ m=614.5\ J.$$