- #1
ande4jo
- 14
- 0
Is it a fact of invariance that a person moving in an enclosed object cannot tell if he/she is moving at constant velocity or standing still (for case when he/she is not being accelerated nor in a gravitational field)? If so, would it be possible to perform an experiment within the closed object whereby a person adds a known amount of energy to an object with a known mass (older definition would have called this intrinsic mass) and then measure the acceleration of said object? The idea that an object that is in motion will require more energy to accelerate than an object rest. This would of course negate the idea that a person would not be able to tell if they were at rest or if they were moving at some velocity.