THanks a lot!!!It's really simple... here, watch this:
http://www.khanacademy.org/science/physics/v/projectile-at-an-angle
And here's the notes I once made, the cover everything on projectile motion in the syllabus but if you can't read my hand writing, check the revision notes on xtremepapers under phsyics... and if you have any questions, I'll be here.
https://www.dropbox.com/s/vcfzfuh8dy6tlww/IMAG0317.jpg (pg1)
https://www.dropbox.com/s/8pa9x7ivzc0z2he/IMAG0318.jpg (pg2)
https://www.dropbox.com/s/qjllzifs0cox482/IMAG0319.jpg (pg3)
double click to zoom, or downlaod.