The velocity of a particle moving along the x-axis is given
as a function of time by the expression v(t) = 3.0t² - 2.0t
+4.0, where v is in meters per second and t is in seconds.
What is the acceleration of the particle at t = 2.0 s? (15P12M)
(A) 4.0 m/s²
(B) 6.0 m/s²
(C) 8.0 m/s2
(D) 10.0 m/s²
(E) 12.0 m/s²