define a pully state the two different types of pulleys
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Explanation:
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt.
These are different types of pulley systems:
Fixed: A fixed pulley has an axle mounted in bearings attached to a supporting structure.
Movable: A movable pulley has an axle in a movable block.
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