The question says the surface is balanced. Therefore we know that the moments should be equal: Total anticlockwise moment = Total clockwise moment

We can rearrange this equation:

Question 2: What is the moment of a 4N downward force acting 0.4m from a pivot? 1. Draw a diagram.

To tackle this question, we should start off by drawing a diagram.

2. Look at the formula.

Now that we have a visual representation, we can see that our force is perpendicular to the distance we were given. Now we can use our formula:

3. Substitute in the numbers.

Once we have put the numbers into the equation, we should get our answer.