In some parts of the country, pumpkin launching is a favorite pastime during Halloween. You've designed a pumpkin launcher that launches the pumpkin at a height of h=3ft and want the pumpkin to impact the ground at a distance d=200ft down field. The launch speed is v0=100 ft/s. What are the minimum needed launch angle and the corresponding total time of flight. NOTE: Use base equations v=dr/dt and a=dv/dt and derive equations.