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Question
Write scientific reason.
The value of acceleration g is greater at the pole than at the equator.
Solution
- The shape of the earth is not perfectly spherical. It is slightly flattened at the poles and bulged at the equator.
- As a result, the radius of the earth at the poles is less than that at the equator.
- But, acceleration due to gravity (g) on earth’s surface is given as, g = `"GM"/"R"^2`, therefore acceleration due to gravity increases with the decrease in radius of earth and vice versa.
- Hence, the value of acceleration due to gravity (g) is greater at the pole than at the equator.
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