In a shipping yard, a crane operator attaches a cable to a 1130-kg shipping container and then uses the crane to lift the container vertically at a constant velocity for a distance of 30 m. Determine the amount of work done by each of the following.
(a) the tension in the cable
J
(b) the force of gravity
J
1 answer
(a)w=mgh=1130*9.8*30
1 answer