A cargo crate of mass MMM slides from rest down a rough curved chute from a vertical height HHH above the ground. On reaching the bottom of the chute, the crate is moving with speed VVV.
During the slide, some of the crate's mechanical energy is transferred to the surroundings as thermal energy.
State, in terms of MMM, HHH, VVV, and ggg (the acceleration due to gravity), how a warehouse safety inspector could calculate the amount of mechanical energy transferred to the surroundings.