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Given 2 vectors $A = 4.00 i + 3.00 j$ $A = 4.00i + 3.00j$ and $B = 5.00 i - 2.00 j$ $B =5.00i - 2.00 j$ how do you find the magnitude of each vector?

1 Answer

Aniket Mahaseth · Stefan V.

Feb 23, 2016

magnitude of vec $A = 5$ $A=5$
and magnitude of vec $B = 5.385$ $B =5.385$

Explanation:

Magnitude of a vector is determined by $sqrt(a^2+b^2+c^2...$
so,

$|vec A|= sqrt(4^2+3^2 = 5$

and

$|vec B| = sqrt{5^2-(-2)^2} = 5.385$

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