Question

Reema swims in a pool that is 100m wide. She cover 200m in 10 minutes by swimming in one direction and then swimming back along the same path . Calculate her average speed and average velocity

Answer 1

Answer:

Velocity = 0 m/s

Speed = 1/3 m/s

Explanation:

To answer this question we need to understand the meaning of distance and displacement.

Distance = The total length covered when moving from one point to another.

Displacement = this is a vector quantity with direction and magnitude. It is the movement from one point to another in a certain direction.

If you move from one point to another and back to the same point the displacement is 0.

If she swims 200m it means she swims back to the same point and the displacement is 0.

Velocity = Displacement / time

Time = 10 × 60 = 600s

Velocity = 0/600 = 0 m/s

Distance covered = 200 m

Speed = Distance / time

Speed = 200/600 = 1/3 m/s

Answer 2

Answer:

Answer is 1/3 m/s and 0m/s as displacement is 0

Explanation: