Use the formula h(t) =−16t2 v0t h0 , where h(t) is the height of an object in feet, v0 is the object’s initial velocity in feet per second, t is the time in seconds, and h0 is the initial height in feet from which the object is launched. Round to the nearest tenth, if necessary. A punter kicks a football with an initial upward velocity of 60 feet per second. The ball is 2 feet above the ground when his foot meets the ball. Use a graphing calculator to determine how long will it take the ball to hit the ground.