# findProjectileTrajectory

Finds a projectile's position at a certain time.

Variable Definitions : ri = initial position {x, y} ; vi = intial velocity {vx, vy} ; g = gravity {gx, gy} ; t = time

    -- This assumes that ri, vi, and g are put in the {x, y} notationfunction findProjectileTrajectory(ri, vi, g, t)
    	local rfx = ri[1] + vi[1]*t + (g[1] * t^2)/2
    	local rfy = ri[2] + vi[2]*t + (g[2] * t^2)/2
    	return rfx, rfy
    end

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