the height of an infield fly ball, h metres, t seconds after it is hit is given by the form h=1.5 + 30t - 4.9t^2
a. determine the maximum height of the ball. i keep gettin -13.5, cud this b rite because it is infield?
b. how long does it take the ball to reach maximum height? 7.5 seconds
c. how long does it take the ball to reach the ground? 15 seconds
d. how high is the ball when it is hit? 1.5 metres