Question

Vector help??

Answer 1

What's the question?

Answer 2

I just dont understand where they get what w1 is equal to from u= 1+3j

Answer 3

Its at the bottom where they define what w1 and w2 are

Answer 4

@primeralph help?

Answer 5

@SithsAndGiggles

Answer 6

@FutureMathProfessor

Answer 7

Yeah. but what am I meant to do?

Answer 8

ok you see at the bottom where they're determining what w and w2 are, yeah well where do they get that from?

Answer 9

It's right there at the bottom. w1 = 2i + j
w2 = -i + j

Answer 10

Im saying how do they calculate that im trying to understand, they're saying that u=i+3j and then w1+w2=u so how did they get w1 in the first place? how do they know its 2(i+j)?

Answer 11

In the diagram; upper right.

Answer 12

Is u replacing F in this case

Answer 13

@primeralph

Answer 14

this seems hard

Answer 15

@doulikepiecauseidont I think they chose chose an arbitrary value for u.

Answer 16

Then everything else was derived from that.

Answer 17

yea thats what im getting at, so how do they get w1 if i get that then ik how to get w2 but i just dont get how to get w1, do you know how they got that?

Answer 18

Of course, Imma draw it.