What is fractional uncertainty mean?

  • Thread starter CKaiL
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  • #1
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When we calculate fractional uncertainty , we get a percentage of the uncertainty but what does it mean? For example 5% .
 

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  • #2
Nathanael
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If I'm traveling 20 m/s with a fractional uncertainty of 5%, then I could actually be traveling anywhere from 19 to 21 m/s
 

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