Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 218
224. A body will fall from a to b via c in the short-est time, if the curve is a Cycloid.S=4d, the length of the Cycloid. >n\Ug = n> 2:tg … 225. y2 sina. cos xo=* . T = V sin.* V sin.»*2-
Mechanical engineering · Engineering
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