# Resultant and moment

LMW - Dk

## Homework Statement

I have to determine the resultant R and the moment about O.

see the image.

## The Attempt at a Solution

See the image.

#### Attachments

• statics.PNG
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• Udklip 1.PNG
35.8 KB · Views: 399
• Udklip.PNG
25.9 KB · Views: 362

Homework Helper
Hi LMW - Dk! Welcome to PF!

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

LMW - Dk
See the pictures. I have found the moment and the resultant. However I think it's the wrong method ^^

Homework Helper
sorry, i didn't notice your third picture

your Fz36 should be minus 36, shouldn't it?

(btw, i think most people find it easier to use cos and sin, of angles < 90°, and then use common-sense to decide whether its + or -)

i don't understand what you did to find the moment
can you please type it out in the post?​

LMW - Dk
Well can't you tell me how you would do this problem? how would you find the resultant and the moment?

LMW - Dk
If you click on the second picture then you can see that i have drawn a direction vector. Then i have found the cfross product of the direction vector and the resultant force.