Mathematics

Problem

The velocity of a particle moving along a line is given by

v(t)=3t^{2}-12t+9

(meters per second) for

0\le t\le3

seconds. What is the particle’s average velocity on this interval? a)

3\text{ m/s}

0\text{ m/s}

9\text{ m/s}

4.5\text{ m/s}