boy swim in a hundred M long pool he cover 60 metre with velocity 20 m per second and cover the rest of the distance with the velocity of 10 metre per second calculate the average velocity of boy
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his average speed is 15m per second
MohitChoyal:
wrong answer
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Average velocity is initial velocity +final velocity/2
20+10/2=15 m/s
20+10/2=15 m/s
wrong ans.
how
ans is 14.2 m/s
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