Question

Two bodies of mass m and 4m are placed at a distancer

Answer 1

than ,what can I do.

Answer 2

Explanation:

A)

Let the point be the position when the gravitational field is zero

Gmx2=G(4m)(r−x)2

1x=2(r−x)

r−x=2x

x=r3

the point P is at a distance r

3 from mass m and 2r3 from mass 4m

V=−GMr3−G(4m)2r3

=−9GMr

Hence d is the correct answer.