Need help deriving drag equation....

[thelakeshow22]

Im currently trying to find out how my book took this drag equation (1/2 CApv^2P) and found the x and y component for accelration (x=(-pACv/2m)*sqrt (v(x)^2+v(y)^2)) &y=(-g-(-pACv/2m)*sqrt (v(x)^2+v(y)^2))

 

[SteamKing]

Im currently trying to find out how my book took this drag equation (1/2 CApv^2P) and found the x and y component for accelration (x=(-pACv/2m)*sqrt (v(x)^2+v(y)^2)) &y=(-g-(-pACv/2m)*sqrt (v(x)^2+v(y)^2))

What's this drag equation for?

What's the title of the book?

Components of acceleration for what?

The more information you can provide, the better chance you will receive some solid replies.