Time intervals measured with a stopwatch typically have an uncertainty of about 0.2s, due to human reaction

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Time intervals measured with a stopwatch typically have an uncertainty of about 0.2s, due to human reaction time at the start and stop moments. What is the percent uncertainty of a hand timed measurement of
(a) 5 s,
(b) 50 s,
(c) 5 min?

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Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: Apr 28, 2010 03:15 AM

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Time intervals measured with a stopwatch typically have an uncertainty of about 0.2s, due to human reaction

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Physics Principles with Applications

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