Usha swims in 90 long full pool she covered 180 metre in one minute by swimming from one end two the other end and back long the same straight path find the average speed and average velocity of Usha
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4min and 720 metre is the answer of your question
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Length of the pool: 90m
Average speed:
Speed= Distance/Time
speed=180/60
speed=30 m/s
Velocity:
velocity=displacement/time
displacement=0( Since she comes back to the same place)
velocity=0
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