Jul 25, 1998
RAY: From time to time people up and move an entire house. If you aren't moving it too far, it can be done on really big rollers. Assume that the rollers are 3 feet in circumference. Now as the house is pushed, the roller is going to turn one complete revolution with no slips. If the roller turns one complete revolution, how far has it been moved?
RAY: Here's the answer: