Question

i need the anwer for this also ...... it is so confusing​

Answer 1

[0010001111]... Hello User... [1001010101]
Here's your answer...

Let the total distance be 3x.

So for the first part,
speed = 1 m/s
distance = x m
Time = x/1 = x s

For the second part,
speed = 2 m/s
distance = x m
Time = x/2 s

For the third part,
speed = 3 m/s
distance = x m
Time = x/3 s

Total distance = 3x
Total time = x+x/2+x/3
= x + 5x/6
= 11x/6

Avg. speed = Total distance/Total time
= 3x/(11x/6)
= 18/11 m/s
≈ 1.64 m/s

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