Question

Usha swims in a 90 m long pool. She covers 180 m in 1 minute by swimming from one end to the other and back along the same straight path. Find the average speed and average velocity of Usha. plz give me its answer step by step.....it's urgent

Answer 1

Answer:

SEE ABOVE ATTACHMENT

Explanation:

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Answer 2

Answer:

Average Speed = 3 m/s

Average Velocity = 0 m/s

Explanation:

Given  :

Distance = (90 + 90) = 180 m , t = 1 min = 60 s

1) Average speed = Total distance travelled / Total time taken

                              = 180 / 60

                               = 3 m/s

2) Average velocity = Displacement  / Time

But as displacement =0(Since she comes back to the same place

Average velocity = 0/10 = 0

Therefore,

Average Speed = 3 m/s

Average Velocity = 0 m/s

Hope it helps!