A batter pops a ball straight up (a) If the ball returns to the height from which it was hit 4.5 s later, what was its initial speed? (b) Does the ball reach its maximum height 2.25s after it was hit, more than 2.25s after it was hit, or
less than 2.25s after it was hit? Explain. (c) Find the maximum height of the ball, as measured from the point
where it was hit.