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Is a reference point ever needed to calculate speed
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3 votes
Is a reference point ever needed to calculate speed

User Alec Gorge
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2 Answers

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A reference point is ALWAYS needed when a speed is described.
User Richard Williams
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8.4k points
2 votes
Yes. Speed does not exist without first having a reference point
User Yoav Aharoni
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8.6k points
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