## Related Rates - Lamppost |
HELP |

A boy on a skateboard rolls away from a 15-ft lamppost at a speed of 3 ft/s. The
boy's height on the skateboard is 6 feet. You can play or pause the animation by click
the animation button in the lower left corner of the applet.

- Find the rate at which his shadow is increasing in length.
- If the boy's height on the skateboard is `h` feet and he rolls away from the lamppost at a rate of `s` feet per second, at what rate is his shadow length increasing?