Question

A world record was set for the men's 100-m dash in the 2008 Olympic Games in Beijing by Usain Bolt of Jamaica. Bolt "coasted" across the finish line with a time of 9.69 s. If we assume that Bolt accelerated for 3.2 s to reach his maximum speed, and maintained that speed for the rest of the race, a) calculate his maximum speed (in m/s) 12.4 b) Calculate his acceleration (in m/s^2) 3.9

          A world record was set for the men's 100-m dash in the 2008 Olympic Games in Beijing by Usain Bolt of Jamaica. Bolt "coasted" across the finish line with a time of 9.69 s. If we assume that Bolt accelerated for 3.2 s to reach his maximum speed, and maintained that speed for the rest of the race, a) calculate his maximum speed (in m/s)

12.4

b) Calculate his acceleration (in m/s^2)

3.9