In a pulley system, it is often equal to the number of ropes supporting the load. Example:If you pull 10 meters of rope to lift a load by 2 meters, the velocity ratio is 5. This means the effort ...

Pulleys are used to help lift many things. Lifts, window blinds and cranes often use pulley systems. Let’s change gear to look at gears. Gears are also wheels attached to a fixed axle ...

This Roman wooden pulley system was found at Bar Hill Roman Fort, Strathclyde, Scotland and was picked by Christina Gilfedder, second year student at the University of Glasgow (Single Honours ...