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प्रश्न
Write scientific reasons.
The value of gravitational acceleration (g) decreases as we go above the Earth’s surface.
कारण सांगा
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उत्तर
- As the height of an object from the surface of the earth increases, the distance between the object and the centre of the earth (r) increases.
- But acceleration due to gravity (g) at distance ‘r’ from the centre of the earth is given as g = `"GM"/"r"^2`; therefore, acceleration due to gravity (g) decreases with the increase in ‘r’.
- As a result, the value of gravitational acceleration (g) decreases as we go above the earth's surface.
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