A lever has an effort arm that is 8 meters long and the resistance (load) arm that is 1.5 meters long, how much effort is needed to lift a 200 Newton weight?

Question

asked Jul 17, 2021 219k views

1 Answer

Ariel Magbanua · Answer 1 · 2021-07-21T18:05:23+0000

Answer:

The effort force is 37.5 N.

Explanation:

We have,

Length of the effort arm is 8

Length of the resistance or load arm is 1.5 m

It is required to find how much effort is needed to lift a 200 Newton weight. The definition of mechanical advantage is :

$m=\frac{\text{effort distance}}{\text{resistance distance}}=\frac{\text{resistance force}}{\text{effort force}}$

Let F is effort force.

$(8)/(1.5)=(200)/(F)\\\\F=(200* 1.5)/(8)\\\\F=37.5\ N$

So, effort force is 37.5 N.