# Vector

• November 12th 2006, 11:56 PM
SHORTY
Vector
vector u= 2i - 5j w= -i -6j
find the magnitude of w-u
• November 13th 2006, 02:42 AM
Quick
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:
• November 13th 2006, 03:15 AM
topsquark
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

$|w - u| = \sqrt{3^2 + 1^2} = \sqrt{10}$

-Dan