Question 106252
Carl Lewis, one of the great Olympian sprinters of this century can run 100 meters in 10 seconds. How fast is this in kilometers per hour?
:
Here's one way:
Find his speed in meters per second:
100/10 = 10 m/s
:
How many meters would he travel in one hour at that speed (3600 sec in 1 hr)
10 * 3600 = 36000 meters in one hr
:
Change that to km/hr
{{{36000/1000}}} = 36 km/hr