Answer to Question #276880 in Classical Mechanics for gelo

Question

Two locomotives are 150 meters apart each having a mass of 4.0x10^5 kg. Find the gravitational force that exist between them.

Answer 1

The force can be found by the law of universal gravitation:

$$F=GM·M/R^2=GM^2/R^2=4.75·10^{-4}\text{ N}.$$