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An object travels near the speed of light, and you are stationary. You measure the object somehow, and find it's length from your reference frame. Would it's length be shorter or longer than the proper length?

Thanks in advance.

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- Thread starter benk99nenm312
- Start date

- #1

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An object travels near the speed of light, and you are stationary. You measure the object somehow, and find it's length from your reference frame. Would it's length be shorter or longer than the proper length?

Thanks in advance.

- #2

dx

Homework Helper

Gold Member

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Shorter.

- #3

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An object travels near the speed of light, and you are stationary. You measure the object somehow, and find it's length from your reference frame. Would it's length be shorter or longer than the proper length?

Thanks in advance.

Either.

- #4

JesseM

Science Advisor

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As long as you're using an inertial frame, it's not possible for an object's length to be longer than its proper length (length in its own rest frame).Either.

- #5

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As long as you're using an inertial frame, it's not possible for an object's length to be longer than its proper length (length in its own rest frame).

That's what I thought.

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