A football is kicked vertically upward from a height of 4 feet
with an initial speed of 60 peet per second. The formula
describes the height of the ball above the ground, , in feet,
seconds after it was kicked. Use the formula to determine
the height of the ball 1 seconds after it was kicked.
(Note: Enter your answer as a decimal number and do not forget to
include the units, e.g.
100 .)
Answer: