Question

Explain why combination of pulley used is better than single pulley.


please give correct answer quickly please.
I will report ​

Answer 1

 (i)Single fixed pulley is the type of single pulley which is very often used as a machine even though it does not give any gain in mechanical advantage.

(ii) Single fixed pulley is used only to change the direction of the force applied.

Combining multiple pulleys decreases the amount of force necessary to move an object by increasing the amount of rope used to raise the object. The amount of rope can be found by rope = original amount of rope x the number of pulleys.

Answer 2

Explanation:

 (i)Single fixed pulley is the type of single pulley which is very often used as a machine even though it does not give any gain in mechanical advantage.

(ii) Single fixed pulley is used only to change the direction of the force applied.

Combining multiple pulleys decreases the amount of force necessary to move an object by increasing the amount of rope used to raise the object. The amount of rope can be found by rope = original amount of rope x the number of pulleys.