A force of 4 N acts on the lever. What is the moment of this force if the arm of the force is 5 cm?

Given:

F = 4 Newton – the force that acts on the lever arm;

x = 5 centimeters is the shoulder length of this force.

It is required to determine p (N * m) – the moment of force F.

We translate the units of measurement of length into the SI system:

x = 5 cm = 5 * 10-2 = 5/100 = 0.05 meters.

Then, to determine the moment of force, you must use the following formula:

p = F * x = 4 * 0.05 = 0.2 N * m (Newton per meter).

Answer: the moment of force F is 0.2 N * m.