Question

If the distance between centre of earth and moon is d and mass of earth is 81 times the mass of moon

Answer 1

Answer:

d/10 from moon and in between moon and earth

Answer 2

Answer:

here's the answer please mark as brainliest and follow me

Explanation:

The point where the force is zero must also be zero from moon's gravitational force

FORCE AT THAT POINT DUE TO EARTH = FORCE DUE TO MOON

GM/x² = GM/(D-x)²

here in the first one M= 81M

$\frac{81m}{ {x}^{2} } = \frac{m}{ {(d - x)}^{2} } \\ 81 {(d - x)}^{2} = {x}^{2} \\ 9 {(d - x)}^{2} = x \\ 9d = 10x \\ x = \frac{9d}{10}$