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CanadianEh
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Homework Statement
- A book has a weight of 21N. It falls off the shelf on to the floor, 3 m below. The work done by the force of gravity is what?
- A book has a weight of 21N. You pick it up off the floor, and return it to the shelf, 3 m above. The work done by the force of gravity is what?
- A book has a weight of 21N. You slide it horizontally along the shelf, a distance of 3 m. The work done by the force of gravity is what?
Homework Equations
Work = Force x Distance
The Attempt at a Solution
I don't get the differences, please help!