Multiple choice

The speed of rotation of earth is?

  1. 13.5 Km/sec

  2. 32 Km/sec

  3. 9.72 Km/sec

  4. None of these.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The earth rotates on its axis at a speed of approximately 1,670 km/h at the equator, or about 0.46 km/sec, which does not match any of the provided numerical options in kilometers per second. Therefore, none of these is correct.