Kartianna is pushing a lawn mower using a force of 300 N. If she pushes the mower a distance of 800 m, how much work has she done?

A 0.165 kg hockey puck initially at rest is pushed by a constant horizontal force of 4.5 N. Determine the hockey puck’s speed after it has moved 3.0 m.

from tour observations about the horizontal and vertical component of position, velocity and acceleration, so you think taking “Legs” of the snowboarder as reference point for plotting the motion is a good option for describing the snowboarders projectile motion

A closed system of gas is observed over a long period of time and it always has the same total amount of energy. This is an example of

What is the potential energy of a 25 kg rock that is on the ground