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Unformatted text preview: the pulley. Also, h is a constant no matter how the blocks move. Finally the red colored segments of the cable remain constant as the blocks move. L = 2s B + h + s A + constant Where L is the total cord length and constant equals the lengths of the red segments . 2v B = -v A 0=2 v B +v A 2a B = -a A Problem can also be worked by defining the position of mass B from the bottom pulley instead of the top pulley. The position, velocity, and acceleration relations then become 2(h s B ) + h + s A = L and 2v B = v A 2a B = a A Sketch:...
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This note was uploaded on 01/22/2011 for the course ME 212 taught by Professor Staff during the Spring '05 term at Cal Poly.
- Spring '05