Question

write short notes variation in value of g​

Answer 1

Explanation:

Variation with altitude or height : When a body moves above the earth's surface the distance of the body from the centre of earth increases there by decreasing the force of attraction. As we go above the earth's surface the value of g goes on decreasing

Answer 2

Answer:

The value of g is inversely proportional to square of the radius of the earth as the relation says below

g = GM/ r²

Where,

G is Universal gravitation constant

M is mass of earth

r is radius of earth

As we know earth is not a perfect sphere but an oblate spheroid in shape, it's radius is greater at equator than it's value at the poles

The value of g at equator is about 9.78 m/s² and 9.83 m/s² at poles.

Explanation:

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