Question #ef165
2 Answers
16 km/h
Explanation:
Speed is basically a measure of the distance travelled per unit time
The formula for average speed = distance travelled
This gives us
Divide the distance by time to get
Explanation:
Let's look at the definition of speed.
Speed is a measure of how fast something moves. Assuming constant speed, it is measured by looking at the distance per unit time:
This is what's called the average speed, because it just sort of adds up all the distance values together and all its associated time values together, then looks at the overall speed as a whole. If you want a more precise measure, look into calculus (see derivatives).
Anyway, to find the average speed, plug in the known values for distance and time:
And simplify (in this case, divide through):
We were asked to find the average speed in kilometers per hour, but oh, look, the answer we have is already in kilometers per hour, so no need for additional conversion!
