Question

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

Answer 1

Explanation:

Given,

Length of the pool = 90m

Time taken = 1m = 60sec (converted minute to second)

According to question, Usha travels from A to B, then back along the same straight path, B to A.

So, the total distance covered by Usha in 1 min = 90 + 90 = 180 m, and

the displacement of Usha in 1 min = 0 m (since she comes back to initial