A young kid releases a paper airplane from the
window of the 19th story building he is in. Exactly
t seconds after he releases the airplane, its height,
(measured in meters) is h(t) = -4.9t2 + 19.6t +
58.8
a. Calculate h(1) and state what the calculation
means.
b. What is the difference in heights between
second 3 and second 5?