Why did Isaac Newton reason that Earth was not perfectly spherical?
A)Centrifugal force created by Earth's more rapid rotation expanded it at the equator.
B)Centrifugal force created by Earth's more rapid rotation flattened it at the poles.
C)Gravitational force created by Earth's more rapid rotation flattened it at the equator.
D)Gravitational force created by Earth's more rapid rotation expanded it at the poles.

Question

Quizplus · Accepted Answer

Isaac Newton reasoned that the centrifugal force due to Earth's rotation causes the planet to bulge at the equator and flatten at the poles, making it an oblate spheroid rather than a perfect sphere.

Why Did Isaac Newton Reason That Earth Was Not Perfectly