s=7t^3-3t
(a)Find the velocity and acceleration as functions of t.
v(t)=
a(t)=
(b) Find the acceleration after 7 seconds.
_______m/s^2
(c) Find the acceleration when the velocity is 0. (Round the answer to one decimal place) _______m/s^2
s=7t^3-3t
(a)Find the velocity and acceleration as functions of t.
v(t)=
a(t)=
(b) Find the acceleration after 7 seconds.
_______m/s^2
(c) Find the acceleration when the velocity is 0. (Round the answer to one decimal place) _______m/s^2