A golf player hits a golf ball from a tee with
an initial velocity of 80 feet per
second. The height of the golf
ball t seconds after it is hit is
given by h = -16t 2 + 80t.
1. How long is the golf ball in
the air?
2. What is the maximum height
of the golf ball?
3. How long after the golf ball is hit
does it reach its maximum height?
4. What is the height of the golf ball after 3.5 seconds?
5. At what times is the golf ball 64 feet in the air? Explain.