1. If a brick is being held (stationary) 15 m above the ground the potential energy will be equal to the total energy of

[answerhappygod]

1. If a brick is being held (stationary) 15 m above the
ground the potential energy will be equal to the total energy of
the system.
a. True
b. False
2. A roller coaster car will have the same total energy at the
top of the ride as it does when it just reaches the bottom.
a. True
b. False
3. If a brick is being held (stationary) 15 m above the
ground and then dropped, the kinetic energy will be equal to
the total energy of the system when the brick has fallen 5 m.
a. True
b. False