Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 373
the back- which gives the relation between velocity stroke ends, and the period begins again. and time, we find that the augle of the These 3 curves, therefore, completely tangent with the axis of abscissas at a „ . . d v represent the circumstances of motion of point on this curve is P = ^y; hence… … It follows that the obliquely hatched 1 hatched surface^. The entire surface surface A must be equal to the obliquely | bounded by the curve II and the axis of
Engineering
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