Definition:Pulley

Definition

A pulley is a simple machine consisting of:

a wheel with (usually) flanged rims

around which a cord can run.

When a force is applied to the cord, the direction of the force can be changed.

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A number of pulleys can be threaded onto the same axle, using a single cord.

Also see

• Results about pulleys can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): pulley
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): pulley