At the IAAF World Championships in London, in 2017, the winner of the men’s 200 m sprint was Ramil Guliyev from Turkey, who ran the 200 m in 20.09 s. Guliyev’s 10 m segment times in the final 50 m of the race are given in Table 2.1

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a. What was the average speed of Guliyev over the final 50 m of the course? Assuming that the absolute uncertainty in the distance measurement is 0.001 m, and the absolute uncertainty in each time measurement is 0.005 s, what is the relative uncertainty in the calculation of this average speed?

b. What was the average speed of Guliyev over the final 10 m of the course? What is the relative uncertainty in the calculation of this average speed?

c. Explain the difference in the two relative uncertainties calculated above