a directional advantage
Single fixed pulley
A pulley can either change the direction or the force, but not both. Since a single fixed pulley makes an object go up when pulled down, it has changed direction. So it can't also change force.
To achieve a mechanical advantage of 3 using pulleys, you can use a combination of fixed and movable pulleys. One common arrangement is to have one fixed pulley and one movable pulley. In this setup, the load is attached to the movable pulley, which is supported by a fixed pulley above it. The user would pull down on the rope, effectively distributing the weight of the load over three segments of rope, resulting in a mechanical advantage of 3.
It allows you to pull from a convenient position. For instance you can raise your washing line or flag whilst standing on the ground instead of having to climb the support pole.
Fixed Pulley and Compound Pulley.
Single fixed pulley
Single Pulley
Single fixed pulley
A single fixed pulley (:
because lifes hard
Thew pulley changes the direction of the effort force.
Nothing, really. A slight loss due to friction. If the pulley is fixed to the load, then there is a 2:1 advantage.
single fixed pulley, single movable pulley and single fixed and movable pulley. :-)
One single fixed pulley cannot give any mechanical advantage. It can only redirect the direction of the applied force.
The input distance of a single fixed pulley is equal to the output distance. The pulley system doesn't provide a mechanical advantage in terms of distance but does change the direction of the force applied.
To make a single fixed pulley work, you need to apply an input force to one end of the rope. The pulley redirects the force in the opposite direction, allowing you to lift or move an object with less effort. The mechanical advantage of a single fixed pulley is 1, meaning the output force equals the input force.
The mechanical advantage of a single fixed pulley is always one because it changes the direction of the force applied without providing any leverage to increase the force. This means that the input force is the same as the output force, resulting in a mechanical advantage of 1.