Work

What is work being done ON and by WHAT?

A ball falling to the ground

What is work being done ON and by WHAT?

You pushing a shopping cart

What is work being done ON and by WHAT?

Lifting a bag of horse feed up to your shoulder

What is doing POSITIVE work, and ON what?

What is doing NEGATIVE work on the rocket as it accelerates towards space?

Why is work done by friction negative?

A an egg of mass 2 kg is dropped from a tree starting from a height of 20 meters, then hits Mr. Vause on the top of his head at a height of 2 meters. How much work did gravity do on the egg as it fell?

A rocket with a mass of 300kg accelerates towards space at a rate of 90m/s2. What is the work done by the engine on the rocket after the rocket travels 1,000m?