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Old Mar 8th 2010, 12:38 PM   #1
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Simple statics Problem

Hello, i somehow dont get the right answer here. I should calculate the magnitudes of the forces F1 and F2 so that the point P is in equilibrium



is my start correct ? maybe i just failed algebraically ? thanks in advance
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Old Mar 11th 2010, 10:03 AM   #2
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I don't see any errors in this, I'd venture that you simply need to recheck the calculations, make sure you haven't stepped in the time honored pitfall of degrees/radians and suchlike, have the right angle for gamma and so on.

However, to nitpick a little, I'd make sure to be consistent with signs; in the figure, for example, the x-component of F is negative and the y-comp is positive, but it's flipped over in the equations. No biggie in a task like this, but it helps to be a perfectionist with details like that when things get more complicated!
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