# Statics Problem about moments in couple

1. Jul 24, 2011

### zack7

I can seem to get the answer of 60N and 125mm from C

Thank you for the help

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2. Jul 24, 2011

### tiny-tim

hi zack7!

show us what you've tried, and where you're stuck, and then we'll know how to help!

3. Jul 24, 2011

### zack7

I actually do not really know how to solve the question.

I now that there is two forces one clockwise and another anticlockwise and they both suppose to cancel each other out when I calculate the moment but for one I am getting -24Nm and the other 7.5Nm. After that I am not very sure what to do?

Thank you

4. Jul 24, 2011

### tiny-tim

hi zack7!
no, there are three forces, you have to find a single force with the same total value (obviously, it's going to be 60N directly down the page), and you have to find the point on CD where that new 60 N has the same moment (about anywhere) as the total moment of all three original forces …

what do you get?

(and i'm not following where you got -24Nm or 7.5Nm from )

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