Question

Suppose the gravitational potential due to a small system is k/r^2 at a r from it.What will be the gravitational field>Can you think of any such system?what happens if there were negative masses?

Answer 1

integral(E.dx) gives the potential. So, differentiate it to get the gravitational field.

Answer 2

that is -2k/r^3

Answer 3

If there were negative masses the potential shall be positive.

Answer 4

Thanks