Question

A
B
Distance between the centres of the
two bodies =3 d.
What will be the force of
gravitational between them ?​

Answer 1

Let the net field at any point P from the earth is zero which is at distance x from the centre of the earth.

Then,the intensity of field at P due to earth =

x

2

GM

e

the intensity of field at P due to moon =

(D−x)

2

GM

m

For no intensity at P.

x

2

GM

e

=

81(D−x)

2

GM

e

taking root we get, x=9(D−x)

or x=

10

9D

Answer 2

Answer:

What is d here please tell me .

Delete my all question.