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A moving spaceship is measured by a stationary observer to have a length that is five‑sixths...

A moving spaceship is measured by a stationary observer to have a length that is five‑sixths of its proper length. What is the speed ? of the spaceship relative to the observer? The speed of light is ?=3.00×108 m/s.

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Answer #1

Solution: Given:- Speed of light, c= 3.00x108 m/s

Let be the length of spaceship as per observer and be the proper length of spaceship.

Then,

The contracted length as per observer is given by:

Here, v is speed of spaceship relative to observer, and c is speed of light.

m/s

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