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A pulley is a simple machine that consists of a wheel with a groove around its circumference where a rope or belt can run. It is used to lift or move objects by applying force to the rope or belt, making work easier.

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1y ago

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Is pulley a third class lever?

No, a pulley is not a third class lever. A pulley is a simple machine that consists of a wheel with a groove around its circumference, used for lifting or moving objects. Third class levers have the input force between the fulcrum and the output force.


What is the definition of simple pulley?

A simple pulley is a basic type of pulley that consists of a wheel with a groove around its circumference and a rope or cord that runs through the groove. It is used to change the direction of a force or to lift or lower an object.


What is a third class lever pulley?

A third class lever pulley is a type of pulley system where the effort force is applied between the load and the fulcrum. This arrangement gives a mechanical disadvantage, meaning that a greater effort force is required to move the load. Third class lever pulleys are commonly used in situations where speed and distance are more important than the amount of force needed.


What is the definition of fixed pulley?

A fixed pulley is a type of pulley that is attached to a stationary object, such as a ceiling or wall. It changes only the direction of the force applied to it, without providing any mechanical advantage. Fixed pulleys are commonly used to redirect the path of a rope or cable.


What is the velocity ration of a pulley?

The velocity ratio of a pulley system is the ratio of the rotational speed of the driving pulley to the driven pulley. It indicates how the speed of the driven pulley relates to the speed of the driving pulley. The formula is: Velocity Ratio = Diameter of driving pulley / Diameter of driven pulley.