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# M2 Line of action help? Watch

1. Question 12 (see attachment) - I've found the forces okay (75N and 25N) but i can't find the line of action of the force by taking moments about the force?
The answer is 3y= x + L
2. (Original post by AvM4N)
Question 12 (see attachment) - I've found the forces okay (75N and 25N) but i can't find the line of action of the force by taking moments about the force?
The answer is 3y= x + L
Well, if you've found that force, then it looks something like this (just focusing on the force F for the moment):

That gives you the gradient of the line, you'll need to find a point on the line such that you can then find the y-intercept of the line.

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