A 566 kg roller coaster car is initially at the top of a rise. It then moves 356 ft at a 65'\" angle below the horizontal. The lower point is a height 149 ft above the ground. It then goes around a loop-the-Ioop of radius 18 ft. take the ground to the the zero of the potential energy. Figure 1 - A roller coaster. The Yukon Striker is an impressive roller coaster. This is meant as an example, and is not the same roller coaster as in the problem. 4- (a) Find the potential energy at the top of the ramp. (b) Find the potential energy just before the loop. (c) Find the speed of the car just before entering the loop. (d) Find the speed of the car at the top of the loop. (e) Find the minimum speed that the car would need to have at the top of the loop. (f) Find the speed of the car when it reaches the ground