The percentage uncertainty in the measured quantity is 2%. For Ek = 12mv^2 ( only v uncertain) the percentage uncertainty is:

  1. 6%
  2. 2%
  3. 4%
  4. 1%
Answer

C) 4%

A quantity raised to the power 2 has 2 times the percentage uncertainty: 2 2% = 4%. SLO P-11-A-06 · Application

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