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The free fall acceleration g increases as one proceeds, at sea level, from the equator toward either pole. The reason is

Options

  1. AEarth is a sphare with same density everywhere
  2. BEarth is a sphere with different density at the polar regions than in the equatorial regions
  3. CEarth is approximately an ellipsoid having its equatorial radius greater than its polar radius by 21 km
  4. DEarth is apporximately an ellipsoid having its equatorial radius smaller than its polar by 21 km

Correct answer

C. Earth is approximately an ellipsoid having its equatorial radius greater than its polar radius by 21 km

Step-by-step solution

The correct answer is option (C)

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