.
Stan goes to work on the bus.
Anne did work on the project for 5 hours.
Joseph found that holding the banner in place was hard work.
An engine does work on a car when the car is moving.
The force of gravity does negative work when the worker lifts the bucket.
The painter does positive work on the bucket when carrying it horizontally at a constant speed.
The painter does positive work on the bucket when setting it down.
No net work is done on the bucket.
W = Fd
W = Fdcos theta
W = Fdsin theta
W = mgsin theta
N.
N•m.
N/m.
Kg•m/s2.
The force of gravity is the only force doing work on the parachutist.
Air resistance is the only force doing work on the parachutist.
No forces are doing work on the parachutist.
No network is done on the parachutist.
Wait!
Here's an interesting quiz for you.