So the vehicle could only move at less than half the speed of light relative to the Earth, due to the speed of the fastest forward moving edge of the spool, and an observer on the vehicle would see it as unspooling at close to the speed of light. Ironic that if a second vehicle with the same...
Hi, I'm Xavier. Currently a diesel mechanic and amateur physicist. Dropped out of high school, but have since gotten my GED. Never taken a science class after high school, just really like physics. Some people count sheep to fall asleep, I contemplate quantum theory.
Had a thought the other day. If a spool of a measuring tape was on a vehicle traveling close to the speed of light away from the Earth, with the spool anchored to the Earth, due to time dilation, would an observer on the vehicle see the spool unraveling faster than the speed of light?