Question

which type of pulley is often used although it has no mechanical advantage? what is the use of such pulley?​

Answer 1

Answer:

A type of single pulley is very often used as a machine even though it does not give any gain in mechanical advantage.

A fixed pulley is useful because when you pull down, you can use your body's own weight to add to the push. In contrast, when you exert a force upwards by lifting something, you also have to lift the weight of your own arms. Imagine that you had a small family member sitting on a seat in the air.