The equation
All of the calculations in this section will be worked out using the distance, speed and time equation. An easy way to remember the distance, speed and time equations is to put the letters into a triangle.
The triangles will help you remember these 3 rules:
- Distance = Speed x Time
- Time = Distance/Speed
- Speed= Distance/Time
On the next page there are some examples to work through. Have paper and a pen handy, draw the distance, speed and time triangle on your paper, then try the examples.
Calculating DISTANCE, given speed and time
Example
Iain walked from his parents' farm into town at a steady speed of 5km/h. The journey took 3 hours. How far did Iain walk?
In the first hour he walked 5km
After two hours he had walked 10km
After three hours he had walked 15km.
Distance = Speed x Time
Distance = 5 x 3
Distance = 15km
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