16. In a volleyball match, Jenny serves the volleyball at 14 m/s, from a height of 2.5 m
above the court. The height of the ball in
h = -4.91 + 14t + 2.5, where h is the
height, in metres, and t is the time, in
seconds, after she serves the ball.
flight can be estimated using the equation
a) What is the maximum height of the
volleyball above the court? When does
this occur? Round answers to the
nearest tenth.
b) If a player on the other team contacts
the ball at a height of 0.5 m above the
court, how long does it take for the ball
to reach her? Round to the nearest
second.