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vector u= 2i - 5j w= -i -6j find the magnitude of w-u

Quote: Originally Posted by SHORTY vector u= 2i - 5j w= -i -6j find the magnitude of w-u Quote: Originally Posted by scrappy if the magnitude of the vector v= 1/2 and a= 113 degrees write the vector v in terms of i and j u= 2i -5j w= -i -6j Are you guys in the same class? :confused:

Quote: Originally Posted by SHORTY vector u= 2i - 5j w= -i -6j find the magnitude of w-u w - u = (2i - 5j) - (-i -6j) = (2i + i) + (-5j + 6j) = 3i + j $\displaystyle |w - u| = \sqrt{3^2 + 1^2} = \sqrt{10}$ -Dan