Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 24
t triangle (Fig. 4), in which the vertical lines drawnat small equal distances represent the velocities at successive instants of time.These velocities form an arithmetical progression, sincethe variation is constant. Letthe equal divisions along thebase of the triangle be thesmall time-interval… … 14 MECHANICS. AB, then the mean equivalent velocity is cd, the linedrawn midway between A and M. But cd is equal tothe half sum of AB and MN^ or the mean velocity is ds Moreover, each instantaneous velocity - - multiplied by at the small time-interval dt, during which the velocity maybe assumed to…
Physics
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