Multiple choice

Rajan swims in a 60-m wide pool and covers a distance of 120 m in 1 minute from one end to the other and back along a straight path. Find his average speed and average velocity, respectively.

  1. 0 ms-1, 2 ms-1

  2. 2 ms-1, 0 ms-1

  3. 0 ms-1, 0 ms-1

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total distance = 120 m. Total time = 60 s. Average speed = 120 / 60 = 2 m/s. Displacement = 0 (since he returns to the start). Average velocity = 0 / 60 = 0 m/s.

AI explanation

Average speed equals total distance divided by total time, so 120 m divided by 60 seconds gives an average speed of 2 m/s. Average velocity equals total displacement divided by total time, and since Rajan returns to his starting point, his displacement is 0 m. Therefore, his average velocity is 0 m/s, making the respective values 2 m/s and 0 m/s.

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