A person trips and drops 3 kg coffe mug straight down from a height of 1.2 meters what is the total amount of work done by gravity on the mug once it reached the ground

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.