Question

A lever is being used to move a heavy stone from a garden. The stone weighs 250 newtons. The board used as a lever is 6 meters long. If two of the board's meters will be used as he resistance arm how much force will be needed to move the rock?

Answer 1

Force = 125 [N]

Step-by-step explanation:

In the attached image we can see a sketch of the lever system.

And if we make a sum of moments at the point O equal to zero (0).

In the equation showed in the image, we can determinate the force that we need