Over a Short Interval, Starting at Time T = 0

Multiple Choice

Over a short interval, starting at time t = 0, the coordinate of an automobile in meters is given by x(t) = 27t - 4.0t³, where t is in seconds.The magnitudes of the initial (at t = 0) velocity and acceleration of the auto respectively are:

A) 0 m/s; 12 m/s²
B) 0 m/s; 24 m/s²
C) 27 m/s; 0 m/s²
D) 27 m/s; 12 m/s²
E) 27 m/s; 24 m/s²