Rumford, Benjamin, Graf von, 1753-1814, American Academy of Arts and Sciences · Boston · leaf 100
gnitudes that while P L ex-pounds the uniform force of gravity, or the weight ofthe bullet, P M shall be as the force exerted by the pow-der upon the bullet, at the moment of the explosion.If now we suppose that while the bullet moves on fromP towards B, the line P M ox pm goes along with it,… … incides with Q B, then will the area P M Q B be to thearea P L D B in the duplicate proportion of the veloci-ties which the bullet would acquire when acted on by itsown gravity through the space P B, and when impelledthrough the same space by the force of the powder, asmay be seen demonstrated by…
