Why can't most objects like an apple travel at speeds above the speed of light?
Who would see it?
Lots of reasons.
It would gain infinite mass. It would require infinite energy to get it there.
Objects with mass, like an apple, cannot travel at speeds above the speed of light because it violates the fundamental principles of special relativity proposed by Albert Einstein. According to Einstein's theory, the speed of light (denoted by 'c') is the ultimate speed limit in the universe. The theory of special relativity states that as an object with mass approaches the speed of light, its energy and momentum increase infinitely, making it impossible to accelerate the object any further.
To understand why objects with mass cannot travel at or exceed the speed of light, we can examine Einstein's equation: E = mc^2. This equation relates energy (E) to mass (m) and the speed of light (c). It shows that as an object's speed approaches 'c', its energy increases significantly, requiring an infinite amount of energy to reach or exceed the speed of light.
Another consequence of traveling at or above the speed of light is time dilation. According to the theory of relativity, time slows down for an object approaching the speed of light relative to an observer at rest. As an object gets closer to 'c', time dilation becomes more pronounced, making it practically impossible to reach or surpass the speed of light from the object's perspective.
In summary, the fundamental principles of special relativity, such as infinite energy requirements and time dilation, make it impossible for objects with mass, including an apple, to travel at speeds above the speed of light.