To find the average velocity, we need to calculate the total displacement and divide it by the total time.
The athlete swims from the north end to the south end of the pool and then returns to the starting position. The total displacement is zero because the athlete ends up at the same position as before. Therefore, the total displacement is 0m.
The total time is the sum of the time taken for one-way trips in both directions: 20.0s + 22.0s = 42.0s.
The average velocity is then calculated as the total displacement divided by the total time:
Average velocity = Total displacement / Total time
Average velocity = 0m / 42.0s
Average velocity = 0 m/s
Therefore, the average velocity is 0 m/s.
An athlete swims from the north end to the south end of a 50.0m pool in 20.0s and makes the return trip to the starting position in 22.0s.
What is the average velocity?
1 answer
1 answer