I'm having trouble with this problem:
So I presume the force by the arm is acting horizontally, towards the left, but are these the only forces acting on the elbow flexors? Do I need to take into account the resistance of the wrist strap first?
I asked if you needed to know the distance to the elbow flexors, and was giving a response that I originally took to mean no, but now, as I struggle with it, I think it could've meant that you do need to make some assumption there.
Here's an example question that was shown:
any help would be greatly appreciated