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rbau493
10-17-2005, 08:49 PM
I have vectors down pretty well but I cant figure out one thing.


I have 28.7 deg S of W
which is 61.3 deg W of S
RCS is 208.7 deg

but what does W #of degrees S
and S # of deg W mean? :confused:

A2VR6
10-17-2005, 10:39 PM
Ok basically when you have W of S then your vector will be pointed south at first and THEN it moved 61.3 deg West. For S of west, then your vector is originally pointing west, but then it was moved 28.7 degrees south. The direction is roughly the same but the angles will be different... hope that helps.

rbau493
10-17-2005, 10:57 PM
I understand that part, the question orginally had 28.7 deg S of W so I figured out that its 61.3 deg W of S and RCS is 208.7 deg.

But what I dont get is W #deg S and S #deg W. What would the # be? Is it W 61.3deg S or W 28.7deg S.

turbotrip
10-17-2005, 11:06 PM
wow that is some pretty messed format, what class is this for?

and i would say that u are right with W 61 S

rbau493
10-17-2005, 11:10 PM
Its Physics 25, grade 11/12 mixed. Ya I find it to be messed too. :(

Heres the question.

State the following directions using the convention asked for.

http://img378.imageshack.us/img378/6867/question8km.jpg (http://imageshack.us)

#* S of W =28.7
#* W of S =61.3


RCS =208.7

GQBalla
10-17-2005, 11:20 PM
hrmmm physics 25?? whats that? is it taught in highschools???

do you mean physics 20? or is this just a physics unit in science 20???

ive never been taught that way

rbau493
10-17-2005, 11:21 PM
Its through college, they said its a grade 11 and 12 combined, I need it as a prereq.

turbotrip
10-17-2005, 11:32 PM
wait actually i think its W 28 S, because it would be the vector is pointing west, but 28 degrees south

Gurpy
10-17-2005, 11:34 PM
I thought it'd be the other way around too - W 28.7 S . We only went over this for maybe one minute though since the teacher himself said we don't need to know it, so I could be wrong.

rbau493
10-17-2005, 11:35 PM
Ya thats what I was thinking too, but its just the way the question is thats screwing me up. Bah its only 2 marks, I'll go with that.

Thanks guys.
:thumbsup:

Gurpy
10-17-2005, 11:37 PM
Awesome - tell us if its right or wrong once you mark it, I don't want to go in for the final exam and have a question like that and be screwed lmao.

rbau493
10-17-2005, 11:38 PM
Originally posted by Gurpy
Awesome - tell us if its right or wrong once you mark it, I don't want to go in for the final exam and have a question like that and be screwed lmao.

LOL, ok will do.