Question

two spherical objects have masses of 1.5x10^5 kg and 8.5x10^2kg their centers are seperated by a distance of 2500 m find the gravitational attraction between them

Answer 1

The gravitational attraction between them can be found by the law of universal gravitation:

$$F=G\frac{m_1m_2}{R^2}=1.36·10^{-9}\text{ N}.$$