Change in position/t greater than speed of light?

howabout1337
Messages
30
Reaction score
0
Is it possible to travel further in distance (position 2 - position 1) over a unit time more than that of traveling at the speed of light? This is not wormhole, or anything that sort, just change in position.

I am coming from the fact that a moving particle can exist on a moving object.
 
Physics news on Phys.org
Same answer as in your previous thread:

Now, relativity says you must use the formula (u+v)/(1+uv/c2)
.
If an object is moving with velocity u, and carrying a moving object whose velocity is v, you don't simply add u + v. The relativistic law of velocity composition guarantees that the speed of light cannot be exceeded.
 
howabout1337 said:
Is it possible to travel further in distance (position 2 - position 1) over a unit time more than that of traveling at the speed of light?
The short answer is "No". Bill_K showed why above. Look at the formula he posted. If u and v are both less than c then the result is always less than c. If either u or v is c then the result is c, regardless of what the other one is.
 
In Philippe G. Ciarlet's book 'An introduction to differential geometry', He gives the integrability conditions of the differential equations like this: $$ \partial_{i} F_{lj}=L^p_{ij} F_{lp},\,\,\,F_{ij}(x_0)=F^0_{ij}. $$ The integrability conditions for the existence of a global solution ##F_{lj}## is: $$ R^i_{jkl}\equiv\partial_k L^i_{jl}-\partial_l L^i_{jk}+L^h_{jl} L^i_{hk}-L^h_{jk} L^i_{hl}=0 $$ Then from the equation: $$\nabla_b e_a= \Gamma^c_{ab} e_c$$ Using cartesian basis ## e_I...
Thread 'Can this experiment break Lorentz symmetry?'
1. The Big Idea: According to Einstein’s relativity, all motion is relative. You can’t tell if you’re moving at a constant velocity without looking outside. But what if there is a universal “rest frame” (like the old idea of the “ether”)? This experiment tries to find out by looking for tiny, directional differences in how objects move inside a sealed box. 2. How It Works: The Two-Stage Process Imagine a perfectly isolated spacecraft (our lab) moving through space at some unknown speed V...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. The Relativator was sold by (as printed) Atomic Laboratories, Inc. 3086 Claremont Ave, Berkeley 5, California , which seems to be a division of Cenco Instruments (Central Scientific Company)... Source: https://www.physicsforums.com/insights/relativator-circular-slide-rule-simulated-with-desmos/ by @robphy
Back
Top