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In a pulley system, which pulley will turn faster?

The largest pulley

The smallest pulley

In a pulley system, the speed at which each pulley turns is inversely related to its size. This means that smaller pulleys will rotate faster than larger pulleys. When a rope wraps around a pulley, the distance covered by the rope per unit of time will be the same for all pulleys in a system. However, since the circumference of a pulley is greater for larger pulleys, they cover a greater distance with each revolution compared to smaller pulleys.

Consequently, the smallest pulley must complete more revolutions in the same amount of time to move the same length of rope. Therefore, it will indeed turn faster than the larger pulleys in the system. This relationship holds true in a typical pulley arrangement where all pulleys are connected by the same rope.

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All pulleys turn at the same speed

The middle-sized pulley

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