Question

answer this question to one another 10 points​

Answer 1

Answer:

ans is 3.22 m/s

Step-by-step explanation:

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Answer 2

Answer:

3.22m/s

Step-by-step explanation:

we know that

for 1st case

speed = $\frac{distance}{time}$

so, time = $\frac{distance}{speed}$

time = $\frac{6 km}{4m/s\\}$

       =$\frac{6000m}{4m/s}$

       =1500s

for 2nd case

time = $\frac{distance}{speed}$

        =$\frac{4000m}{2.5m/s}$

        = 1600s

so,

average speed = total distance/total time

                         = $\frac{6000+4000}{1500+1600}$

                         = 3.22 m/s

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