Kingda Ka at Six Flags Great Adventure is the world's largestroller coaster. When fully occupied, one car has a mass of 741 kg.When the car reaches the highest point (139 m above the ground) ithas a speed of 23.5 m/s.

a. What is the kinetic energy of the car at the top (inJoules)?

b. What is the potential energy of the car at the top (inJoules)?

c. What is the total energy of the car (in Joules)?

d. What is the potential energy of the car at the bottom of thetrack (ground level, in Joules)?

e. What is the kinetic energy of the cart at the bottom of thetrack (in Joules)?

f. How fast is the roller coaster moving at the bottom of theride (in m/s)?