Question

If Radius Of Earth R The Height H At Which Value Of G Becomes One -Ninth Is

Answer 1

Answer:

2R above earth surface

3R from center of earth

Explanation:

If Radius Of Earth R The Height H At Which Value Of G Becomes One -Ninth Is

g = g₀/(1 + h/R)²

g₀ = gravity at earth surface

g = g₀/9

=> g₀/9 = g₀/(1 + H/R)²

=> (1 + H/R)² = 9

=> (1 + H/R) = 3

=> H/R = 2

=> H = 2R

H is the height above earth surface = 2R

2R + R = 3R from center fo earth