Question

2. A barrel floats down a river past two flags that are 100 meters apart. The time it took for the barrel to pass each flag is shown. What is the speed of the stream's
current?
2:15
2:43
O A 0.28 m/s
OB.22 m/s
OC. 24 m/s
OD.3.6 m/s

Answer 1

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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