Velocity

Now that we have some basic units to work with and a way to measure displacement, the next thing we can do is measure how fast something’s going.

Normal Americans measure speed in miles per hour, mph. All that is is a distance divided by a time. It works the same way in science, you only use different units. In science problems, you use meters for the distance and seconds for the time. Now you can divide meters by seconds.

m/s

Now you can easily put in numbers and divide them. As an example, let’s say you can run the 100 meter dash in 10 seconds. To find out your speed there, you just divide the numbers

100m/10s
↓
100/10=10
↓
10m/s

So, you ran an average of 10 m/s in that race. It’s as easy as that.