A roller coaster car travels down a hill and is moving at 18 m/s as it passes through a section of straight, horizontal track. The car then travels up another hill that has a maximum height of 15 m. If frictional effects are ignored, determine whether the car can reach the top of the hill. If it does reach the top, what is the speed of the car at the top?
a) No, the car doesn't make it up the hill. It is going too slow.
b) Yes, the car just barely makes it to the top and stops. The final speed is zero m/s.
c) Yes, the car not only makes it to the top, but it is moving at 5.4 m/s.
d) Yes, the car not only makes it to the top, but it is moving at 9.0
m/s.
e) Yes, the car not only makes it to the top, but it is moving at 18 m/s.