If a ball is thrown vertically upward from the roof of a 48-foot high building with a velocity of 16 ftlsec, its height, in feet, after t seconds is 3(t) = 48 + lt 15:52. 11.] What is the maximum height, in feet, the ball reaches? Answer: C] b.] What is the velocity, in feet per second, of the ball when it hits the ground (height 0)? Answer: 0