Sharon kicks a ball from the ground into the air with an upward velocity of 64 feet per second. the function h = -16t2 + 64t models the height h, in feet, of the ball at time t, in seconds. when will the ball reach the ground again? a: 1 second after the ball is thrown b: 2 seconds after the ball is thrown c: 3 seconds after the ball is thrown d: 4 seconds after the ball is thrown