Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 41
area Fig. 20 / I A = - (yo + yi) + ~ (yi + Ji) As a closer approximation divide the width, 2 I, ofthese strips into 3 equal parts each equal to m. We thenhave WORK ANB ENERGY 2$ 2 2 2 = — OO + 2 771 + 2 172 + yz) ; but as ^m = 2I, and rii + i^ = 2p, A =-(3o+4# + )2).3 If now the curve is concave…
Mechanics
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