Suppose that a projectile is launched from an initial height yi with an initial speed Vi and it strikes a target at a fianl height yf and fianl position xf. Show that the proper launch angle (feta symbol) is given by(adsbygoogle = window.adsbygoogle || []).push({});

feta = tan^-1 [xf +/- Square root of Xf^2 - 4k(k-Delta y) / 2K]

where K = ayXf^2/ 2 Vi^2

sry for the HORRIBLE typing of formulas..i dont know how to add them in.

and i dont have a photocopier.

thanks in advanced for any help on this one.

Patrick

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# Homework Help: Projectile angle

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