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ryuunoseika
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Since light speed requires an infinite amount of time to achieve it's effectively an acceleration right? Does anyone know what I'm trying to say? And better yet, if it's right?
A massless thing always travels at c so it never really accelerates.Mentz114 said:2. A massless thing can accelerate to c in zero time.
You answered your question right there. The speed of light is a speed/velocity. It indicates the distance traveled by a photon.ryuunoseika said:light speed requires an infinite amount of time to achieve
atyy said:A massive particle can never achieve the speed of light, so if it tries to, it will accelerate forever.
Since light speed requires an infinite amount of time to achieve it's effectively an acceleration right?
ryuunoseika said:Since light speed requires an infinite amount of time to achieve it's effectively an acceleration right? Does anyone know what I'm trying to say? And better yet, if it's right?
I found this quite baffling. After all, speed is measured in m/s and acceleration in m/s2, so how can a speed be an acceleration?ryuunoseika said:Since light speed requires an infinite amount of time to achieve it's effectively an acceleration right? Does anyone know what I'm trying to say? And better yet, if it's right?
tiny-tim said:it doesn't move away as you're trying to catch it!
MeJennifer said:A massless thing always travels at c so it never really accelerates.
dsmith23 said:… just because radio waves for example are massless, this does not mean that they move anywhere near the speed of light. especially because even looking at different colors of light, they all have different wavelengths and thus move slightly faster or slower than one another.
All electromagnetic waves travel in vacuum at the same speed c. The wavelengths λ and frequencies f all vary, but the speed remains constant.dsmith23 said:this is not true: consider the electromagnetic spectrum. all of these waves are exactly the same, at least in what you might consider to be the wave 'quality.' the only thing that changes proportionately is their frequency and wavelength. light makes up a very small part of this spectrum falling under the visible light category. just because radio waves for example are massless, this does not mean that they move anywhere near the speed of light. especially because even looking at different colors of light, they all have different wavelengths and thus move slightly faster or slower than one another.
I second that!DrGreg said:All electromagnetic waves travel in vacuum at the same speed c. The wavelengths λ and frequencies f all vary, but the speed remains constant.
[tex]c = f \lambda[/tex]
Damos said:I like to think that the mass gained by an object as it approaches the speed of light is basically a resistance to it's acceleration. So maybe massive particles can travel at the speed light, the problem is accelerating to such a speed.
Damos said:isn't this the same as the resistance of a massive particle to accelerate in space time at low velocities, except, at high speed the resistance is plotted on an expotantial curve rather than a linear one?
Velocity is the rate of change of an object's position with respect to time. It is a vector quantity that includes both magnitude and direction. Acceleration is the rate of change of an object's velocity with respect to time. It is also a vector quantity.
The speed of light is a velocity. It is the speed at which light travels in a vacuum, which is approximately 3 x 10^8 meters per second.
No, the speed of light is a constant in a vacuum and does not change. However, it can change when it travels through a medium such as air or water.
The speed of light is incredibly fast and is the fastest known velocity in the universe. It is much faster than the speed of sound, which is approximately 343 meters per second.
Yes, according to Einstein's theory of relativity, the speed of light is an absolute limit for all velocities in the universe. Nothing can travel faster than the speed of light.