The acceleration of a free fall due to gravity is not a constant everywhere on the Earth's surface because
A
mass of the earth
B
elliptical shape of the earth
C
variation in the density of the earth
D
rotation of the earth about its axis
Verified Correct Answer: B.
Physical Principles & Numerical Solution
The elliptical shape of the Earth: The Earth is not a perfect sphere; it is slightly flattened at the poles and bulging at the equator. This shape causes variations in gravitational acceleration.
Source: Myschool Past Questions Archive (Record #70696)