Tuesday, 22 July 2014

Triangle Addition

Commonwealth Maths

Commonwealth Maths
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)  one kilometer takes him… 9.58= 100 x 10 = 9.58
(b) 1 mile (1600 metres) (1.6km) it takes Usain Bolt ...It would be around 153.28
(c) A marathon (26.2 miles)  42 kilometers….I recomend it would be 4015.93

2.  What is his speed in
(a) Metres per second 10.288
(b) Miles per hour 72 miles per hour