A ball is thrown in the air from the top of a building. Its height, in meters above ground, as a function of time, in se
Posted: Thu Jul 14, 2022 3:56 pm
A ball is thrown in the air from the top of a building. Its height, in meters above ground, as a function of time, in seconds, is given by h(t)=−4.9t2+21t+6. The path of the ball has a vertex at (t,h(t)) where t=2a−b​ and k=h(t). How long does it take to reach maximum height? (Aound your answer to the nearest tenth.) It takes seconds for the ball to reach its maximum height.