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Calculate the resultant of the four forces shown and their total moment about A. Hence determine the perpendicular distance from A to the line of the single force which would have the same effect as the forces F1, F2, F3 and F4 combined.

Assume the following values:

F1 = 55N, F2 = 33N, F3 = 74N and F4 = 68N

Note that, in this diagram, angles shown are not drawn accurately

Could you please give me some clue of how to answer this question? my main problem is that I don't know how to find the distance between A and each forces, I'm so confused.

Thanks for your help.

Assume the following values:

F1 = 55N, F2 = 33N, F3 = 74N and F4 = 68N

Note that, in this diagram, angles shown are not drawn accurately

Could you please give me some clue of how to answer this question? my main problem is that I don't know how to find the distance between A and each forces, I'm so confused.

Thanks for your help.