Between Many Objects
More generally, the force of gravity exerted on an object of mass m by N objects of masses mi and at distances ri is equal to the vector sum of all the individual forces, given by the equation:
Read more about this topic: Fg (physics)
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“It is an inexpressible Pleasure to know a little of the World, and be of no Character or Significancy in it. To be ever unconcerned, and ever looking on new Objects with an endless Curiosity, is a Delight known only to those who are turned for Speculation: Nay, they who enjoy it, must value things only as they are the Objects of Speculation, without drawing any worldly Advantage to themselves from them, but just as they are what contribute to their Amusement, or the Improvement of the Mind.”
—Richard Steele (1672–1729)