statics help!
Elder User
Joined: May 2006
Posts: 966
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From: Too far north of I-10
Originally Posted by tewferford
Was that aliens talking? 
Mountain Pass
Joined: Sep 2003
Posts: 224
Likes: 0
From: Pulaski, NY
I don't have time right now to do all the math, but here is how I would solve the problem (kind of like how weeds did it):
Break up the problem into X components and Y components of each vector. The resultant vector has 0 Y component, so that part is simple. The X component is a little more complex, but solved the same way. Once you figure out the X component of the 3rd vector, do your trig function to determine the angle, which will be relative to the X axis. Subtract the 30 degrees from the nearby vector, and you should have theta.
Good luck.
Break up the problem into X components and Y components of each vector. The resultant vector has 0 Y component, so that part is simple. The X component is a little more complex, but solved the same way. Once you figure out the X component of the 3rd vector, do your trig function to determine the angle, which will be relative to the X axis. Subtract the 30 degrees from the nearby vector, and you should have theta.
Good luck.
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