Yes, apparently we still haven't exhausted that topic.Originally posted by arcnets
With amazement, I noticed the 'pulley question' thread with (so far) 42 replies.
Put a black box around the whole system (plate, pulley, man): You get a black box hanging from a rope. Now what is the tension in the rope?
A pulley is a simple machine consisting of a wheel with a groove around its circumference and a rope or belt that runs along the groove. It is used to lift heavy objects by reducing the amount of force needed to lift them.
A pulley works by redirecting the force applied to the rope or belt. As the rope is pulled, the pulley rotates and the object being lifted moves up. The more pulleys used, the less force is needed to lift the object.
Tension in a rope refers to the force applied to the rope in order to keep it taut. In the case of a pulley system, the tension in the rope is equal throughout the system and is used to lift the object.
In a pulley system, the more pulleys that are used, the less force is needed to lift the object. This is because the tension in the rope is distributed evenly throughout the system, making it easier to lift the object.
Yes, the tension in a rope can be greater than the weight of the object being lifted. This is possible because the tension in the rope is distributed evenly throughout the system, making it easier to lift the object.