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## Homework Statement

Here is the question:

"A ball moves through the air, and experiences a force of air resistance, in addition to the force of gravity. While it moves, its total mechanical energy decreases by 15J, and its gravitational potential evergy decreases by 25J"

A: What is the net work done on this ball by all the forces acting on it?

B: What is the work done on the ball by the force of air resistance.

C: What is the work done on the ball by the force of Gravity?

## Homework Equations

## The Attempt at a Solution

I'm not sure which formulas to use here... Can anyone help me out?