Question

In 2009, Usain Bolt set the world record for sprinting 100 m, 9 3/5
Find his average speed in meters per second.

Answer 1

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It is given that Usain Bolt set the world record for sprinting 100m in approximately 9 3/5 a second.

Formula for average speed is:

Given distance is 100 m and time in sec is 9 3/5

The average speed in meter per second is

Therefore the average speed of Usain Bolt in meter per second is 10\frac{5}{12}.