contestada

A crane uses a cable to lower a crate of mass M = 29.2 kg to the ground from an initial height of H = 6.02 m.

The crate is initially moving downwards with a speed Vi = 0.77 m/s and hits the ground moving downwards with a speed of Vf = 3.25 m/s.

What is the work done by the force of tension in the rope on the crate in lowering it from the initial height to the ground? (be sure to include the correct sign for the work.)
Give your answer in Joules to at least three significant digits.