A ball with a mass of 4 kg is released from the top of a ramp with a height of 6 m. it rolls all the way down, and then up a second ramp.
a. Calculate the potential energy at the top of the 6 m ramp.
b. Calculate the kinetic energy at the bottom of the 6m ramp.
c. Calculate the potential energy 4 meters up the second ramp.
d. Calculate the kinetic energy 4 meters up the second ramp.
e. Caclulate the ball's velocity 4 meters up the second ramp.
