a boy swins in a 100 m long pool he covers 60 m with a velocity of 20m/s and covers the rest of the distance with the velocity of 10m/s. calculate the average velocity of the boy.

answer me with solutions. i got 14.2 m/s

  • Benedic
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Your Answer

 60m * 1s/20m = 3 seconds 
40m * 1s/10m = 4 seconds 

100m/7s = average velocity = 14.28571 m/s and I would round it to 14.3 m/s

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  • thankyou

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