Question

Usha swims in 90 m long pool . She covers 180 m in one minute by swimming from one end to the other and back along the the same straight path find the average speed

Answer 1

Answer:

3 m/s

Explanation:

speed = distance/time

= 180 m /60 sec (don't forget to convert it. to SI units

= 3m/s or 3 ms^-1

Answer 2

Answer:

3m/s

Explanation:

s=d/t

180 upon 60 (do not forget to convert it in to si unit)