Elements of mechanics: treated by means of the differential and integral calculus (1887)
Peck, William G[uy], 1820-1892. [from old catalog] · New York, Chicago, A. S. Barnes & company · leaf 198
eached from A, with a given initial velocity,under two different angles of projection ; second, that everypoint lying on the surface can be reached, but only by a sin-gle angle of projection ; thirdly, that no point lying withoutthe surface can be reached at all. If we suppose a body to be… … 194 MECHANICS. For every value of x, y is negative, which shows thatevery point of the trajectory lies below the horizontal linethrough the point of projection. If we suppose ordinates tobe estimated positively downwards, we shall have, y=g • • • • (120.) To find the point at which the trajectory…
Mechanics
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