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?

The effort force is 37.5 N.

Step-by-step 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 :

Let F is effort force.

So, effort force is 37.5 N.