I am literally 5 compared physicists-a tire rolls down hill and it keeps rolling faster can it increase in speed infinitely as long as the hill is infinitely large?
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As it approaches the speed of light, it would take an ever-increasing amount of force to pull it faster. No physical object can reach the speed of light, and nothing including light can exceed it. So could it *increase* in speed forever? Yes but the rate it accelerates will slow so it inches ever closer to the speed of light but never reaches it.
In the real world the “speed limit” would be terminal velocity where air resistance is slowing it as much as gravity is speeding it up. The behavior is the same, it will slowly approach this speed limit but won’t pass it.
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