Help with shot trajectory

[WhatAmIDoing]

Well it's been along time since i've been on here but here i am again and i need some help i was reluctant to ask for help but after going to several of my teachers and them telling me that they had no-idea how to do this i'm posting to ask for help. i'm currently making a scorch game and it works but i'm trying to perfect the equation for the shot. so far all i do is take the power of the shot and divide by 9.8^2 then times by 100 to get how many pixels tall the parabola is. the to get the x value for how long the parabola is i divide the y by 2. i have the rough version of my new equation but it's not working so i was wondering if any of you guys new how to fix it?[/code]

[Cervantes]

Wrong Forum. You want to be in Turing Help.

Why not use the formula for a parabola?
y = a(x - k)^2 + q
(I'm not sure if I've got the variables correct. I kinda forget.

Or, you could make it work graphically:

Turing:

%based on homer_simpson's code setscreen ("graphics:max;max,nobuttonbar") var t := 0.0 type projectile_t :     record         x, y, v, a, w, startx, starty : real     end record var shell : projectile_t shell.x := 0 shell.y := 50 shell.startx := 0 shell.starty := 50 put "Enter shell's angle : " .. get shell.a put "Enter shell's velocity : " .. get shell.v put "Enter shell's weight : " .. get shell.w procedure Projectile (var obj : projectile_t, t : real)     obj.x := (obj.v * cosd (obj.a) * t) + obj.startx     obj.y := (obj.v * sind (obj.a) * t - (obj.w) * t ** 2 / 2) + obj.starty end Projectile setscreen ("offscreenonly") loop     cls     t += 0.1     Projectile (shell, t)     drawfilloval (round (shell.x), round (shell.y), 10, 10, black)     View.Update     delay (10)     exit when shell.y <= 0 end loop