# 1) From inside the room I would view the light moving north at the speed of light 2) From outside the room, observing from a stationary position, would the light exiting the window move at twice the speed of light? or would it change speed?

1) From inside the room I would view the light moving north at the speed of light
2) From outside the room, observing from a stationary position, would the light exiting the window move at twice the speed of light? or would it change speed?
You can still ask an expert for help

• Questions are typically answered in as fast as 30 minutes

Solve your problem for the price of one coffee

• Math expert for every subject
• Pay only if we can solve it

Tristin Durham
1) That's true.
2) No, it will still move at speed of light, thus theoretically outer observer will never see any light coming out of that window in this case, this is simple result of Velocity-addition formula in special relativity.
###### Did you like this example?

• Questions are typically answered in as fast as 30 minutes

Solve your problem for the price of one coffee