How can a fixed pulley make work easier?

Answer 1

Mechanical advantage is not the only reason one would use a pulley. For instance in a car, pulleys are used to drive alternators and Power Steering pumps. The use of the pulley and belt is to give power to these devices from the crankshaft. It's a method of transfering kinetic energy to these devices.

Answer 2

A fixed pulley makes the wok easier by changing the direction of the force, and the distance the force is applied over.

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Answer 3

A single pulley gives you no machenical advantage. If you are lifting a load of 100kg with a single pull, you will need a force equal to 100kg.

Answer 4

Nothing, the power put in the same or less than the output, depending on if you factor in friction.

Answer 5

A single pulley does not give any mechanical advantage, but it helps reverse a direction force according to our need.

Answer 6

The mechanical advantage of a single fixed pulley is 1.

Answer 7

There is no mechanical advantage. It's a directional advantage. You change the direction of the force to be applied to your advantage, so you can use stronger muscles, a beast of burden, etc.

Answer 8

if you use a double fixed pully, it could make the rope or wire haver that much more preasure

Answer 9

ha ha ha its just simple its because because and because if i had known the answer i would have not ask........sorry i will better answer next time.

Answer 10

it changes direction of the force