If a projectile is launched at an angle 0 with the horizontal, its parametric equations are as follows. x = (60 cos(0))t and y = (60 sin(0))t - 16t2 Find the angle that maximizes the range of the projectile. 45 Use a graphing utility to find the angle that maximizes the arc length of the trajectory. (Round your answer to one decimal place.) 56.5