Posted by Minte on Sunday, November 25, 2012 at 6:12pm.
The sum & difference of two nonzero vectors Ä & B are equal in magnitude.what can you conclude about these vectors?why?

Physics  bobpursley, Sunday, November 25, 2012 at 7:24pm
Sum A+B
difference=AB
maginitude sum=ABcosTheta
magnitude difference=ABcos(PITheta)
setting them equal, then cosTheta=cos(PITheta)
costheta=sinThetasinPIcosThetaCosPI
cosTheta=sinTheta+cosTheta
which makes sense only if theta is zero or PI. The vectors A,B are colinear

PHYSICS  Anonymous, Thursday, November 28, 2013 at 3:09pm
PERPENDICULAR

Physics  Anonymous, Tuesday, October 18, 2016 at 12:10am
A& B are perpendicular to each other
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