The officer sees the contracted length of the spaceship.
This length is given by:
From the graph we can use:
, for a particular v.
Label the spaceships as follows:
(1) L = (100)(0.6) = 60 m
(2) L = (200)(0.9) = 180 m
(3) L = (100)(0.9) = 90 m
Six spaceships with rest lights L0 zoom past an intergalactic speed trap. The officer on duty records the speed of each ship , v. (No ship is going in excess of the stated speed limit of c, so she doesn't have to pull anyone over for a ticker.)
Rank these spaceships on the basis of their length measured by the police officer.
Rank these spaceships on the basis of their lengths as measured by their respective captains.
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