# finding vector

• Jan 24th 2010, 12:39 PM
alessandromangione
finding vector
find a vector v whose magnitude is 3 and whose component in the i direction is equal to the component in the j direction

thank you
• Jan 24th 2010, 12:51 PM
Jhevon
Quote:

Originally Posted by alessandromangione
find a vector v whose magnitude is 3 and whose component in the i direction is equal to the component in the j direction

thank you

you want a vector $\left< x,x \right>$ such that $\| \left< x,x \right> \| = 3$

That is, $\sqrt{x^2 + x^2} = 3$

Now solve for $x$ and you can find your vector.
• Jan 24th 2010, 01:16 PM
alessandromangione
thank u so much!