Pulley Information
How Does It Work?
When you pull on the rope, you move the load. Either you are pulling up, or you are pulling down. However, the load is still getting raised no matter which direction you are pulling the rope.
Characteristics-Needs to have a rope Examples-Flag Pole |
DisadvantagesIf you use a single-fixed pulley, you have to still pull the same amount of force as if you didn't even use the pulley at all. Sometimes, you have to apply more weight than the item. AdvantagesDepending on how the pulley is arranged, you usually will get a mechanical advantage by using a pulley. When you use a single-fixed pulley, you have an advantage because you are only lifting half of the thing's actual weight. |