# A high school athlete runs #1.00 * 10^2# #m# in #12.20# #s#. What is the velocity in #m##/##s# and #km##/##h#?

##### 1 Answer

#### Explanation:

In order to calculate the velocity we need both the distance travelled and the time taken to travel that distance. In this case we have both, I will start by converting the

So

Substitute both these values into the equation:

I like to keep the units in the calculation to make working the units of velocity out easier.

Now we know the velocity in

Therefore we need to multiply our answer by:

Note: I retained the non-rounded value in the calculator through the calculations, this will improve your accuracy and avoid rounding error.