I need know if a person falls from a certain height onto a body part, let say their bottom, would having fat or not fat be better? If all else being equal, would the extra padding from the fat absorb enough energy when falling than it would be if they were just lighter without that fat? Approximate the answer using simple newtonian physics, use the coefficiency of restitution of 0.25 for fat and 0.8 for the floor.