Vector

**tigerpaw** · February 25th 2009, 06:08 PM

On the Cartesian plane, if vector WV extendeds from the origin to (2,1) how do you make vector WV = 0, cordinates are in the (I,J) format.

**HallsofIvy** · February 26th 2009, 06:41 PM

Originally Posted by tigerpaw

On the Cartesian plane, if vector WV extendeds from the origin to (2,1) how do you make vector WV = 0, cordinates are in the (I,J) format.

I have no idea what you mean by "make vector WV= 0". You are telling us that WV= $2\vec{i}+ \vec{j}$ and that is NOT 0.

**tigerpaw** · February 27th 2009, 01:21 PM

answers were similar to:

a. -2i + 1j
b. 1/2i - 1j
c. -2i - ij

**Plato** · February 27th 2009, 01:34 PM

Originally Posted by tigerpaw

answers were similar to:
a. -2i + 1j
b. 1/2i - 1j
c. -2i - 1j

If the question were, which of the above vectors do you add to WV to get the zere vector 0 then the answer is c.
Note the 'red' correction.

**earboth** · February 28th 2009, 03:14 AM

Originally Posted by tigerpaw

answers were similar to:

a. -2i + 1j
b. 1/2i - 1j
c. -2i - ij

If you are asked to find a vector such that the product of WV and this vector equals zero then the answer is b)

Thread: Vector