A football player kicks a ball with an initial upward velocity of 47 feet per second. The initial height of the ball is 4 feet. The function h(t)=-16t^2+47t+4 models the height (in feet) of the ball, when t is the time in seconds. What is the maximum height the ball reaches? Round to the nearest 1/2 foot. If no one catches the ball how long will it be in the air? Round to the nearest second