usha swim in 90 m long pool she coverd 180m in 1 minutes by swimming from one end to the other and along the straight path the average velocity of usha is
#20m/s
#200m/s
#0m/s
# none of these
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0
Answer:
answer is none of these
Answered by
1
Answer:
average velocity = total displacement/total time
= 0/60s
= 0 m/s
displacement is 0 as she came back to her starting point
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