

The force (F) required to lift the weight (W) is reduced by the pully. The pulley doesn't reduced the amount of work that has to be done to lift the weight. Solve for force (F) by entering the weight (W).
W:
Force:
| What's New | |
| RC Circuit | 12/04/09 |
| Frequencies of Musical Notes | 11/14/09 |
| Dot Product | 11/12/09 |
| Cross Product | 11/12/09 |
| Pythagorean Theorem | 11/11/09 |
| Composition of Air | 11/11/09 |
| Quadratic Formula | 11/10/09 |
| Two Pulley System | 11/09/09 |
| Gravitational Force | 11/09/09 |
| Surface Area of A Cylinder | 11/09/09 |