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Epicteatime
 one year ago
If a meterstick moves to your right at a constant velocity of 0.8c, what would you measure its length to be?
Epicteatime
 one year ago
If a meterstick moves to your right at a constant velocity of 0.8c, what would you measure its length to be?

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Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Length contraction

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge L = \frac{ L_0 }{ \gamma } = L_0 \sqrt{1\frac{ v^2 }{ c^2 }}\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1\[L_0\] is your proper length, L is the length observed by an observer in relative motion (respect to the object), v is your relative velocity, and finally c is the speed of light

epicteatime
 one year ago
Best ResponseYou've already chosen the best response.1I think the answers 0.6m, what do you think?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1\[L_0 = 1m\] \[v = 0.8c\] \[L = 1m \times \sqrt{1\frac{ (0.8c)^2 }{ c^2 }} = \sqrt{1\frac{ 0.64c^2 }{ c^2 }}m = 0.6m ~~ \checkmark\]

epicteatime
 one year ago
Best ResponseYou've already chosen the best response.1xD Thanks for le confirmation fwendo :D

epicteatime
 one year ago
Best ResponseYou've already chosen the best response.1but just to be sure, do you cancel out the c^2 or smt?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Yes, it gets cancelled out

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436160757936:dw
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