If an 600 kg roller coaster is at the top of its 60 m high track, it will have a potential energy pf 352,800 J and a kinetic energy of 0 J. This means the total mechanical energy is 352,800 J. If the cart drops down to where its kinetic energy is now 352,800 J, how high off the ground is the cart now?

a. 0 m

b. 8.27 m

c. 38.27 m

d. 68.27 m

If an 600 kg roller coaster is at the top of its 60 m high track, it will have a potential energy pf 352,800 J and a kinetic energy of 0 J. This means the total mechanical energy is 352,800 J. If the cart drops down to where its kinetic energy is now 52,800 J, how high off the ground is the cart now?

a. 0 m

b. 8.02 m

c. 38.02 m

d. 51.02 m

A 700 kg car is driving on a bridge. It has 50,000 J of mechanical energy and 30,000 J of kinetic energy. How high is the bridge? Hint: find potential energy and then use that to find height.

a. 0 m

b. 0.92 m

c. 2.92 m

d. 10.92 m