COMEDK · Physics · 9. Gravitation
The acceleration due to gravity at a height of \(7 \mathrm{~km}\) above the earth is the same as at a depth d below the surface of the earth. Then d is
- A 3.5 km
- B 2 km
- C 14 km
- D 7 km
Answer & Solution
Correct Answer
(C) 14 km
Step-by-step Solution
Detailed explanation
The acceleration due to gravity at a height \(h\) above the surface of the earth is given by \(g_h = g \left(1 - \dfrac{2h}{R}\right)\), where \(g\) is the acceleration due to gravity at the surface and \(R\) is the radius of the earth. The acceleration due to gravity at a depth…
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