A stationary observer O is standing on a platform of length 65 meters on earth. A rocket passes at a velocity of – 0.80c, parallel to the edge of the platform. The observer O notes that at a particular instant the front and back of the rocket simultaneously line up with the ends of the platform. (a) According to O, what is the time necessary for the whole rocket to pass a particular point on the platform? c =3 ×108 m/s. (b) What is the rest length of the rocket according to an observer O’ on the rocket? (c) According to O’, what is the length of the platform?
A stationary observer O is standing on a platform of length 65 meters on earth. A rocket passes at
a velocity of – 0.80c, parallel to the edge of the platform. The observer O notes that at a particular instant
the front and back of the rocket simultaneously line up with the ends of the platform.
(a) According to O, what is the time necessary for the whole rocket to pass a particular point on the
platform? c =3 ×108 m/s.
(b) What is the rest length of the rocket according to an observer O’ on the rocket?
(c) According to O’, what is the length of the platform?
Given:
The length of the platform is .
The velocity of the rocket is .
The length of the rocket with respect to observer O is .
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