9. Given s(t) = 4t^2 + 12t, where s(t) is in feet and t is in seconds, find each of the following.
a) v(t)
b) a(t)
c) The velocity and acceleration when t = 2 sec
a) v(t) =
b) a(t) =
c) When t = 2 sec, the velocity is (1)
(Simplify your answer.)
When t = 2 sec, the acceleration is (2)
(Simplify your answer.)
(1) O sec.
O ft / sec^2.
O ft.
O ft / sec.
(2) O ft / sec^2.
O ft / sec.
O sec.
O ft.