Mathematics

Problem

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

v(t)=3t^{2}-12t+7

(in meters per second) for

1\le t\le4

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

2\text{ m/s}

-6\text{ m/s}

-2\text{ m/s}

2.5\text{ m/s}