Two identical spheres are separated by a distance

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

Two identical

5.0\,\text{kg}

spheres are separated by a distance

r

. The gravitational potential energy of the pair is

-1.0\times10^{-7}\,\text{J}

(with zero at infinite separation). What is the separation

r

? (a)

0.034\,\text{m}

(b)

0.13\,\text{m}

(c)

0.017\,\text{m}

(d)

3.3\times10^{-4}\,\text{m}