An elementary treatise on mechanics, embracing the theory of statics and dynamics, and its applications to solids and fluids (1849)
Smith, Augustus William, 1802-1866 · New York, Harper · leaf 151
cting, we findW. (sin. a—\i cos. a)cos. £—^ sin. £No motion will take place while the value of P is betweenthese two, which are its limits. These two values of P may be combined so as to take theform W cos. edzfi sin. £P — sin. a±(i cos. ain which the upper sign is to be taken when friction acts… … Proceeding as in Art..173, let ABC be theinclined plane formedby unwrapping one /revolution of thethread, the angle BAC= a ; let W= thewhole weight sustain-ed by the screw, w=that part of it support-ed at a, Q= the wholeforce acting at the cir-cumference of the cyl-inder, ?-ED the radius of the…
Mechanics, Analytic
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