The speed of barrel is 3.6 m/s when moving from one flag to another.
For calculating the speed of the barrel from one flag to another, we used the formula of speed which is speed= distance / time. We know that the distance between two flags is 100 meters.
The time taken by the barrel from one flag to another flag is 28 seconds i.e. subtracting 2:43 from 2:15 we get 28 seconds. By putting the value of distance and time in the formula of speed we get 3.6m/s so we can conclude that the speed of barrel is 3.6 m/s when moving from one flag to another.
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