October 4, 2015

Homework Help: Physics

Posted by Tammy on Wednesday, September 19, 2007 at 2:48pm.

Three vectors, each have a magnitude of 30 units, have their tails at the same oint and are directed 120 degrees from each other. Make a statement concerning the sum of these three vectors.
a) the sum vector is 0
b) the sum vector is greater thatn 30
c) the sum vector is equal to 30
d) the sum vector is less than 30

c) would be the correct answer right? I did v=sqrt(v_x^2 +v_y^2) and got 29.9993 which is quite close to 30.

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