What is the most feasible way to explain the speed of light as the speed limit? (1 Viewer)

[Run hard@thehsc]

^^^^ Any insight would be appreciated!!! I have seen responses from the stance of discussing impulse as opposed mass dilation....

 

[Epicman69]

Can't you just say, by the relativistic Momentum formula, we can see that as an object approach the speed of light, the momentum of that object (basically kinetic energy) approaches infinity (any number divided by something approaching zero approaches infinity), meaning in order to achieve the speed of light we will need to create infinite energy which will break the conservation of energy which states that no energy can be destroyed or created only transferred/transformed. This means that the speed of light is the limit of how fast an object can travel.

Edit: Added relativistic lol

 

[Run hard@thehsc]

Can't you just say, by the relativistic Momentum formula, we can see that as an object approach the speed of light, the momentum of that object (basically kinetic energy) approaches infinity (any number divided by something approaching zero approaches infinity), meaning in order to achieve the speed of light we will need to create infinite energy which will break the conservation of energy which states that no energy can be destroyed or created only transferred/transformed. This means that the speed of light is the limit of how fast an object can travel.

Edit: Added relativistic lol

ye fair thats what I would have written lol

 

[Epicman69]

ye fair thats what I would have written lol

Mind you, momentum isn't really kinetic energy, I just said it was to simplify it. They are kinda related because momentum is created when an object is in motion and an object only has kinetic energy when it is in motion.

 

[Run hard@thehsc]

Mind you, momentum isn't really kinetic energy, I just said it was to simplify it. They are kinda related because momentum is created when an object is in motion and an object only has kinetic energy when it is in motion.

ye got that - in essence, as the velocity approaches the speed of light, the relativistic momentum approaches infinity, and the mass begins to dilate as a result (since mass is a measure of energy as per the energy-mass equivalence proposed by Einstein), since mass is a measure of inertia, and inertia increases with velocity. Hence, as the relativistic mass approaches infinity, it demands an 'infinite' amount of energy/force for that mass to travel at the speed of light or accelerate toward it - this is simply not plausible nor practically since no sufficient energy nor force will be sufficient to accelerate to the speed of light!!!

 

[wizzkids]

The relativistic momentum argument is the best line to take in the HSC syllabus.
Perhaps there is another way to argue that "C" is a cosmic speed limit, because "C" is the maximum speed of causality. Any two objects that are travelling at a relative speed greater than "C" cannot be part of the same Spacetime interval, and they cannot be causally connected. No force, no particle, no field and no information can be passed between these objects. Minkowski said that such objects belong to "elsewhere" and they are not observable in our current Spacetime.

 

[idkkdi]

^^^^ Any insight would be appreciated!!! I have seen responses from the stance of discussing impulse as opposed mass dilation....

How to Derive the Speed of Light from Maxwell's Equations: 7 Steps

Maxwell's Equations, along with describing how the electric field \mathbf{E} and magnetic field \mathbf{B} interact, also predict the speed of light, for light is an electromagnetic wave. Thus, the end goal here is to obtain a wave...

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iirc, basically maxwell's equations implies c = 1/sqrt(the two constant)