Physics · Gravitation

Why does an object weigh more at the North or South Pole than at the Equator?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Due to the atmospheric pressure difference between poles and equator
2Due to the variation in centripetal force of Earth with altitude
3Due to the reduction of effective gravity at the equator caused by Earth's centrifugal force, alongside its oblate spheroidal shape✓
4Due to Earth's varying distance from the sun

Correct answer

Due to the reduction of effective gravity at the equator caused by Earth's centrifugal force, alongside its oblate spheroidal shape

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