In a 100 metre sprint, Usain Bolt typically reaches his top speed after the first 60 metres. What is his acceleration over the final 40 metres of the race (in m/s2), if he is able to maintain his top speed until the finish line? Note: the time taken to run the entire 100m race was 10.2 s and the time taken to run the final 40 metres was 3.54 Express your answer to 2 decimal places (do not put units in your answer)