Vectors Q&A: Expert Help and Advice - Don't Miss Out!

[SFOo]

-__- aah please help

 

[fss]

I don't see a question.

 

[SFOo]

find the Rx and Ry

 

[fss]

find the Rx and Ry

And why are you stuck on this problem? Where is your attempt at a solution?

 

[fizzynoob]

were not a free homework service... its really not a hard question, do some research

 

[SFOo]

i need it tomorrow T__T

 

[iRaid]

Vx = V cos \theta
Vy = V sin \theta

 

[SFOo]

Vx = V cos \theta
Vy = V sin \theta

thanx
but can u show me how did u do it :) please

 

[fss]

thanx
but can u show me how did u do it :) please

Go back to your book or notes. This is really basic stuff; every book has an example that will be able to help you. You might even want to go back and review what a vector is, as you seem to be quite lost.

As stated in the rules, we are not going to do your work for you. If you care to take a stab at the problem (and depending on how honest of an attempt it is) we may offer corrections to help you understand.

 

[fizzynoob]

lets go back to Trig 101, take a look
[PLAIN]http://img547.imageshack.us/img547/1426/vectors.png

sin(\theta) = Opp/Hyp
cos(\theta) = adj/Hyp

So if you look at the picture above, if you want the Y component you get

sin(\theta) = Vy/V // just replace Opp with Vy and Hyp with V
Vy = Vsin(\theta)

The x component is the same process
cos(\theta) = Vx/V

Vx = Vcos(\theta)