# Finding Lever Lengths With Overall Mechanical Advantage

## Homework Statement

If the mechanical advantage of a lever is, lets say, 10; the forces pushing down on the effort arm equate to 100kg and the forces pushing down on the load arm equate to 1000kg and the lever itself is 5 meters, how do we go about finding the individual arm lengths (i.e. the length of the effort/lever arm).

## The Attempt at a Solution

Here's what I'm thinking.
MA = 10
Simultaneously,
MA = Effort Arm / Load Arm
10 = Effort Arm / Load Arm
Load Arm * 10 = Effort Arm
2Load Arm * 10 = 5

True or false?

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ehild
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## The Attempt at a Solution

Here's what I'm thinking.
MA = 10
Simultaneously,
MA = Effort Arm / Load Arm
10 = Effort Arm / Load Arm
Load Arm * 10 = Effort Arm
It is correct up to here, but how did you get the following?
2Load Arm * 10 = 5

If you add one apple to 10 apples will you get 2*10 =20 apples?

ehild

Then how would you isolate the load arm?

ehild
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