Asprinter set a high school record in track and field, running 200.0 m in 21.9 s. what is the average speed of the sprinter in kilometers per hour?

- The average speed of sprinter is .

Solution:- From given data, distance covered by the sprinter is 200.0 m and it takes 21.9 seconds. We know that:

Let's plug in the values and calculate the speed.

It wants speed in kilometer per hour. So, let's do the unit conversion as:

1000 m = 1 km

60 sec = 1 min

60 min = 1 hour

The set up looks as:

=

So, the average speed of the sprinter is .

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