The length of a race track is measured to be 50 m, with an uncertainty of 0.02 m. An athlete completes the race in 6.972 s. The uncertainty in the time measurement is 0.003 seconds. What is the speed of the runner in m/s? What is the percentage uncertainty in the length? What is the percentage uncertainty in the time? What is the percentage uncertainty in the speed? What is the uncertainty in the speed?

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Estimate of calculation