4.5 meters in 9 seconds is 1.8 kilometers per hour.
70 meters in five seconds equates to 50.4 kilometers per hour.
23.7 kilometers per hour = 6.583 meters per second.
150 kilometers per hour = 41.67 meters per second.
26 meters per second = 93.6 kilometers per hour.
Driving 66 meters in 3.7 seconds means you've averaged 64.2 kilometers per hour during that time.
(100,000 meters/hour) x (0.13 second) / (3,600 seconds / hour) = 3.6111 meters (rounded, repeating)
100 meters in 9.58 seconds equates to an average of 23.35 miles per hour.
100 meters/9 seconds = 40 kilometers per hour = 24.85 miles per hour (rounded)
About 22.9 miles per hour.
Well, there are 1609.344 meter in one mile, and there are 3600 seconds in one hour, so 1mph times 1609.344 meters per mile equals 1609.344 meters per hour and 1609.344 meters per hour times 1 hour per 3600 seconds equals .44704 meters per second. In other words take your mph, multiply by .44704, and that's how many meters per second it equals.
400 meters in 43.18 seconds equates to an average speed of 20.72 miles per hour.