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(Pulley) Let's say you had a pulley system with a mechanical advantage of 3. If you want to lift a boulder 10 meters off the ground, how far would you have to pull the rope?



Answer :

Answer: 30 meters

Explanation:

In this case, the mechanical advantage (MA) is given as 3, and you want to lift the boulder 10 meters off the ground. Let

x represent the distance you have to pull the rope.

3

=

10

3=

10

x

​

Now, solve for

x: =3×10

=

30 meters

x=3×10=30 meters

So, you would have to pull the rope a distance of 30 meters to lift the boulder 10 meters off the ground in a pulley system with a mechanical advantage of 3.

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