University Physics with Modern Physics with Mastering Physics (11th Edition)

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5.73: For a rope of length L , and weight w , assume that a length rL is on the table, so that a length L r ) 1 ( - is hanging. The tension in the rope at the edge of the table is then , ) 1 ( w r - and the friction force on the part of the rope on the table is . s s rw f μ = This must be the same as the tension in the rope at the edge of the table, so
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Unformatted text preview: ). 1 ( 1 and ) 1 ( s s + =-= r w r rw Note that this result is independent of L and w for a uniform rope. The fraction that hangs over the edge is ) 1 ( 1 s s + =-r ; note that if . 1 and 1 , s =-= = r r...
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