Usha swims in a `90 m` long pool. She covers `180 m` in one minute by swimming from one end to the
Channel: Doubtnut
Date: 26/07/2020

Usha swims in a `90 m` long pool. She covers `180 m` in one minute by swimming from one end to the other and back along the same length path. Find the average speed and average speed and average velocity of Usha.