Q-Use the principle of moments and take moments about A to show that the weight of
the object O is 19 N.
Can anybody please show me the steps and why?
In attached file.

Question

Q-Use the principle of moments and take moments about A to show that the weight of 
the object O is 19 N.
Can anybody please show me the steps and why?
In attached file.

monsterisenergy · Answer

I know moments = f x d
and I know that anti clockwise moments = clockwise moments
But I am confused in here.

monsterisenergy · Answer

Omygod nevermind I get it xD
We divide 1.2/2 = 0.6 half the distance from M to A because 8.5N is in the middle :D .
Phew.