An introduction to astronomy : designed as a text book for the students of Yale College (1846)
Olmsted, Denison, 1791-1859, Yale College (1718-1887) · New York : Collins, Brother & Co. · leaf 127
elocity, it will soon depart from thetangent, describing the line AD; with a greater velocity it willdescribe a curve nearer to the tangent, as AE; and with a stillgreater velocity it will describe the curve AF. As an example of a body revolving in an orbit under the influ-ence of two forces,… … body -were allowed to move without receiving any impulse, itwould descend to the earth in the direction PA with an acceleratedmotion. But suppose that, at the moment of its departure fromP, it receives a blow in the direction PB, which would carry it toB in the time the body would fall from P to A…
Astronomy
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