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26.4/5 1. A spaceship passes you at a speed of 0.760c. You measure its length to...

26.4/5

1. A spaceship passes you at a speed of 0.760c. You measure its length to be 26.6 m. How long would it be when at rest?

2. If you were to travel to a star 112 light-years from Earth at a speed of 2.59×108 m/sm/s , what would you measure this distance to be?

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Answer #1

Proper length is length measured when the observer is at rest w.r.t. the object, while improper length is measured when both moves relative to one another.

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