Sam runs 9 kilometers in 2.5 hours. what is his speed?
1 answer:
Considering the definition of speed, the speed of Sam is 3.6 .
Speed is a quantity that expresses the relationship between the space traveled by an object. That is, the speed is associated with the change of position of an object in space within a certain amount of time.
The speed can be calculated using the expression:
In this case, you know:
- displacement= 9 km
- time= 2.5 h
Replacing in the definition of speed:
Solving:
<u><em>speed= 3.6 </em></u>
Finally, the speed of Sam is 3.6 .
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