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silvermace

Resultant Force (Moment + Forces) - Mechanics.

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im studying for exams (in 2ish weeks) im currently doing some statics problems and i've come across a question that i dont have the answer sheet to. the answer i get is very strange, could someone tell me if im using the right process? what i do is get the equivilant force for the moment by: F = 345 / ( SQRT(12^2 + 9^2) ) = 23N (exactly) then i just sum the Forces in X and Forces in Y to get the resultant vector R = 0.161i + 84.6j which is really wiered, bascially vertical?? any help? [edited by - silvermace on June 5, 2004 9:38:02 PM]

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If you did your math right, then why not? You have a downward right force of 23 N, and an upward left force of 65 N. That should cancel out to a net 42 N force in the upward left direction. Then there''s another 75 N force upward right. Right there, you can see that the left and right components will do some cancellation, and the upward components will sum.

I haven''t actually sat down and done the problem, but from the looks of your diagram your math was fine.

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