Page:The Mathematical Principles of Natural Philosophy - 1729 - Volume 1.djvu/380

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Of the attractive forces of bodes which are not of a phærical figure.

If a body be attracted by another, and its attraction be vatly tronger when it if contiguous to the attracting body, than when they are eparated from one another by a very mall interval; the forces of the particles of the attracting body decreae, in the reces of the body attracted, in more than a duplicate ratio of the ditance of the particles.

For if the forces decreae ine a duplicate ratio of the ditances from the particles, the attraction towards a phærical body, being (by prop. 74.)

ciprocally