If NASA scientists use positive and negative numbers to represent the time surrounding a rocket launch, what would zero mean?

If NASA scientists use positive and negative numbers to represent the time surrounding a rocket launch, what would zero mean?
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3 Answers

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Answer 3
by Top Rated User (1.2m points)
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I am think it may be B. two minutes before take-off
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Your answer is:the moment of take-off.
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