12_206 & 207 - s A + 2 s B + s C = constant and...

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Problems 12-206 and 12-207 (page 96) COMPLETION OF PROBLEMS 12-206 AND 12-207 The rope equation is: l 1 + l 2 + l 3 + l 4 = constant The path equations are: l 1 + constant = s A l 2 + constant = s B l 3 + constant =s B l 4 + constant =s C Adding the four path equations and using the rope equation gives:
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Unformatted text preview: s A + 2 s B + s C = constant and therefore v A + 2 v B + 2 v C = Problem 12-206 : v A = 4 and v C = ! 2 so v B = ! 1 That is, ! v B = 1.00 ft/s up Problem 12-207 : v A = 6 and v C = 18 so v B = ! 12 That is, ! v B = 12.0 ft/s up...
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This note was uploaded on 10/26/2010 for the course MATH MATH100 taught by Professor Akos during the Spring '10 term at The University of British Columbia.

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