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Usha swims in a 90m long …

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Usha swims in a 90m long pool she covers 180m in one minute by swimming from one end to the other and back along the same straigth path find the average speed and average velocity of usha

Posted by Deepak Meena 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Deepak Meena 5 years, 8 months ago

Total distance= 180m time taken=60seconds average speed =total distance /time taken 180/60 =3ms-1 displacement = 180+(-180)=0 average velocity =0/60 =0ms-1

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