A sprinter set a high school record in track and field, running 200.0 m in 22.0 s . What is the average speed of the sprinter in kilometers per hour?

Question

A sprinter set a high school record in track and field, running 200.0 m in 22.0 s . What is the average speed of the sprinter in kilometers per hour?

Answer 1

Hello Suzane

 

We need to perform 2 conversions:

m → km

s → hr

 

Conversion factors for the above are:

 

1000 m = 1 km

3600 s = 1 hr

 

200.0 m x (1 km / 1000 m) = 0.2000 km

 

22.0 s x (1 hr / 3600 s) = 0.00611 hr

 

Average speed in km/hr = 0.2000 km / 0.00611 hr = 32.7 km/hr