A sprinter is running a 200 m race. She is being measured with an old-fashioned stopwatch, one that is accurate down to the nearest second.A sprinter is running a 200 m race. She is being measured with an old-fashioned stopwatch, one that is accurate down to the nearest second.
If her time is read off the dial as 27.3 seconds, given how accurate the stopwatch is, what is closest to the relative uncertainty in her time?