Originally Posted by
AzTallRider
I'm no physicist or mathmatician, stapfam, but isn't there a force requirement to move mass, separate from the wind resistance? Isn't that why E-mc2 limits the speed of anything to the speed of light, because with any mass at all, the energy required isn't possible? It's that physics thing that is holding you back! I have no explanation whatever for what DnvrFox is describing.
There is a force requirement to move mass AGAINST A RESISTANCE, such as air resistance, bearing resistance, or the rolling resistance of tires. Climbing can be seen as a form of resistance. In Newtonian physics no force is required to maintain speed of motion if no resistance is present. In relativistic physics this is not the case, but the additional forces would not reach a level that is significant until the speed becomes at least maybe 20% of the speed of light (depending on what you think "significant" means). At our piddly little on-planet speeds of travel, even fast cars don't go more than about 50 meters/second. The speed of light is 300 million meters per second. Special relativity has essentially nothing to do with us.