Two boxes of equal mass are released from the same point on a ramp. The green box (Box A) slides without friction down the ramp. The red box (Box B) has a kinetic force of friction acting on it.

Predict what the graphs of gravitational potential energy, kinetic energy, and total mechanical energy look like for each box as a function of distance from the starting point. The zero level for potential energy is the bottom of the ramp.

Predict what the graphs look like as a function of time.