I. Solve the following problems and answer the following questions. Show all your work and provide answers rounded off to the appropriate number of significant digits. Explain your reasoning when required in a maximum of a 5 lines paragraph. 1.During a race, a sprinter increases from 18 km/h to 27 km/h over a period of 3.5 X 10-4 h. What is the sprinter’s average acceleration in m/s2 during this period?