How fast is Usain Bolt?
The World’s Fastest Man
Usain Bolt holds the 100m World Record at 9.58 seconds.
1. Going at that speed, how long would it take him to run:
(a) 1km (1000m) - 9.58 seconds
(b) 1 mile (1600 metres) (1.6km)- 1.62
(c) A marathon (26.2 miles)- 11.3 seconds
2. What is his speed in
(a) Metres per second - 12.27
(b) Miles per hour - 27.44