Suppose you are six feet tall and walk around the Earth's equator.
How much farther does your head travel than your feet?
Solution:
The distance traveled by your feet is
C = 2 pi R, where pi = 3.14 and R is the radius
of the Earth.
C' = 2 pi (R + 6) or 2 pi R + 12 pi.
Subtracting C' - C, your head goes 12 pi ft farther than your feet (or approximately 37.7 ft)!
Note: The radius of the circular object is not relevant.
Correctly solved by:
| 1. Michael Leatherman | Norfolk, VA |
| 2. Trey Genda | Winchester, VA |
| 3. Chad McDaniel | Winchester, VA |
| 4. Andrew Crosby | Winchester, VA |