Please view attached images. The first one is #2 and the second one is #1.

The force will determine the acceleration.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.