Jan
20

Measuring speed

Filed Under (Year 9) by griggans on 20-01-2009



Usain Bolt of Jamaica broke the world record in the 100 m in the olympic final in Bejing last year. His time was 9.69s. How fast was he going? A neat trick in google (type the speed in m/s in mph in the search bar) can help you work this out in mph – does this seem like a lot?

 

Who Was Fastest HW

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