A 5.00 x 10 kg roller coaster travels at a speed of 15.0 m/s when at
a height of 5.00 m above the the ground (assume mechanical
energy is conserved).
A) Calculate the kinetic energy at 5.00 m.
B) Calculate the gravitational potential energy at 5.00 m.
C) Calculate the speed of the roller coaster when it is at a height of
10.0 m.
