- #1
jono90one
- 28
- 0
Homework Statement
You are in a vehicle heading towards Mars at constant speed. A superspeeder is going at constant speed 0.9c relative to you. When the superspeeder pases you, both times start at 0.
"At the point when you measure the superspeeder has traveled 1.4 x 10^7 m past you, what does teh superspeeder read on their timer"
"At the point when the superspeeder reads the values calculated in previous question, what do you read on yours?"
Homework Equations
t=t0 gamma
s=d/t
The Attempt at a Solution
The first one i get 0.5 by just using speed = distance / time and re-aranging
But, I am sure which is t and t0, t0 is the proper time, but t0 is always smaller than t, so teh thing going faster must always be t0 right?
So is t0 here the time the superspeeder reads?
(As i was told it was the other way around which has confused me :S)
Also for clarity, is t0 and l0 measured in the same frame of reference?
Thanks.