A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 219
r W = T- (^ Here s is the distance through which the power acts,and A the distance through which the weight is raised.If a resistance (R) is overcome through a distance d,then P.s - R.d, P d m By the use of these equations the relation of the Powerto the Weight (or Resistance), when the Power… … Fig. 135. always acts vertically (Fig. 135) and turns the leverfrom the position AB to that of AB\ then the effective 190.] LEVEE. 201 distance through which it acts is AC (~ s), and theheight through which the weight is raised is BD (= h).Therefore P^ ITD _ ITF BF W ZZ AC ZZ AF ~ AF; .-. P.AF =…
Mechanics
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