The velocity of a particle moving along a line is given by (meters per second) for seconds

MATHEMATICS · Single correct · A Level · Mathematics · Kinematics · Kinematics

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}

(b)

0\text{ m/s}

(c)

9\text{ m/s}

(d)

4.5\text{ m/s}