Question

vi) A girl swims in a 90m long pool. She covers 180m in one by swimming from one and to the other and back along same straight path. Find the average speed and average velocity of the girl​

Answer 1

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 position)

Now, we know that-