This problem is from WileyPLUS. I've been looking through my book, but none of the methods they present work for me. I guess I just don't know how to use them properly.
Determine the moments of the 5.6-kN force about the point O and about point B.
I know I can split F into its X and Y components by using Fsin(theta) and Fcos(theta).
The Attempt at a Solution
I think if I multiply the X and Y components of F by the corresponding coordinate distances between point A and B or A and O and add what I get, I should get the moment but for some reason this isn't giving me the right answer:
9sin(24) + (-11)cos(24) = -6.388
-6.388 * -5.6 = 35.77
-4sin(24) + (-11)cos(24) = -11.676
-11.676 * -5.6 = 65.39
All the website tells me is that these answers are wrong. Any help is greatly appreciated! Thanks!