Mathematics

Problem

2\,\text{m}

-tall student walks away from the base of a

6\,\text{m}

lamppost at a constant rate of

1.5\,\text{m/s}

along a flat path. When the student is

10\,\text{m}

from the lamp, what is the speed (in m/s) of the tip of the student’s shadow along the ground? a)

4.50

2.25

1.50

0.75