At its tallest point a rollercoaster lifts participants to a height of 115 m. the combined mass of a fully loaded coaster train with participants that each weigh 100kg is a total of 4,500 kg. calculate the gravitational potential energy of the coaster train and its riders relative to the ground using the formula u9= mgh. assume the acceleration due to gravity on earth g= 10 m/s/s.
115,000 j
51,750,000 j
1,150,000 j
5,175,000 j
