7.) A 72 kg skier is beginning to ski down a slope starting 90 meters high. There is an issue, the skier did
not see a curb in the slope and did not realize they were going to hit a wall at the bottom of the slope. It
was observed by a nearby instrument that when the skier collided with the wall of snow there was 64 J
of sound energy given off. The rest of the kinetic energy was converted to heat energy, what was the
amount of kinetic energy converting to heat from the collision?