Posted by J on Monday, May 7, 2012 at 8:28pm.
Three forces of 5 N, 8 N, and 10 N act from the corner of a cube along its edges. Using Cartesian vectors, find the magnitude of the resultant force.

Calculus  Reiny, Monday, May 7, 2012 at 8:55pm
magnitude^2
= hypotenuse^2
= 5^2 + 8^2 + 10^2
= 189
magnitude =√189 = appr 13.75
or
resultant = 5(1,0,0) + 8(0,1,0) + 10(0,0,1)
= (5,8,10)
maginitude of resultant = √(25+64+100) = √189 as above

Calculus  J, Monday, May 7, 2012 at 11:35pm
thank you :)
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