Question

Usha SIM in a 90 metal long pull the scars 180 metre in 1 minute by from on into the others other and back along the some string find the speed and average bike city of Usha

Answer 1

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 straight path. Find the average speed and average velocity of

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-

Hence, the average speed of Usha is 3 m/s and her average velocity is 0 m/s.