NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A sled and rider with a combined mass of 130 kg are at the top of a hill of height 12 m above the level ground below. The sled is given a push providing an initial kinetic energy of 1500 J at the top of the hill. Choosing a reference level at the bottom of the hill, what is the potential energy of the sled and rider at the top of the hill