Ifa boulder that has a mass of 50 kilograms is on the edge of a 50 meter high cliff, what type of energy does it have and how much of that energy does it have? 9) What unit of measurement do we use to describe the energy that boulder has?
10) When that boulder falls and is half way down the height, how much potentialenergy does it have?
11) How much kinetic energy does the boulderhalf way down that cliff have? Hint: Think conservation of energy.