Calculate the value of acceleration due to gravity at height R above Earth’s surface in terms of g, where g is acceleration due to gravity at Earth surface and R is radius of Earth.
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→ Acceleration due to gravity:-
↪️ Acceleration produced in a body due to gravity. It is denoted by g.
- F=mg
i.e g = F/m
=> F= G.Me.m/(Re+h)²
=> F= GMem/(2Re)²
Here, G= gravitational constant = 6.67×10^-11N-m²/kg²
Me= 6 × 10²⁴ kg
Re= 6400 Km
now,
as we know...value of g = 9.8m/s (at surface of earth
g= GMem/Re² = 9.8m/s²
→ at R distance above surface of earth
g'= GMem/4Re²
g' = 9.8/4 = 2.45m/s²
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The value of acceleration due to gravity at height R above Earth’s surface in terms of g is .
We need to find the value of g at height R above Earth’s surface .
We know ,
Here , r is the distance from the center of the earth .
Therefore , r = 2R .
We know , .
Hence , this is the required solution .
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Gravitation
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