Physics Help Forum statics(Momentum) problem

 Jun 20th 2013, 01:19 AM #1 Junior Member   Join Date: Aug 2011 Posts: 5 statics(Momentum) problem the force acts in the plane of triangle ABC , where A(2,3) ,B(1,-4) ,C(-1,0) If moment about A = moment about B = 60 and moment about C =-60 Find vector F and its magnitude >> this is my attempt .... HTML Code:  Is this correct? __________________ ]Nothing is impossible Last edited by mido22; Jun 20th 2013 at 01:23 AM.
 Jun 20th 2013, 10:00 AM #2 Physics Team     Join Date: Jun 2010 Location: Morristown, NJ USA Posts: 2,354 Looks good right up to the end. Your values for L and M are the x and y values for vector F, respectively, but instead of writing F=(L,M) you wrote F=(M,L). You can see quite easily that the direction of F as you've written it is not parallel to AB because of the reversed values of x and y components. However the calculation of the magnitude of F is good.
 Jun 22nd 2013, 01:26 PM #3 Junior Member   Join Date: Aug 2011 Posts: 5 thanks very much for your help __________________ ]Nothing is impossible
 Jun 24th 2013, 07:17 AM #4 Physics Team     Join Date: Jun 2010 Location: Morristown, NJ USA Posts: 2,354 You're welcome! By the way I notice that you used the word "momentum" in the subject title of this thread, but of course what you meant is "moment."

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