problem08_p111

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

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8.111: a) The tension in the rope at the point where it is suspended from the table is ( 29 g x T λ = , where x is the length of rope over the edge, hanging vertically. In raising the rope a distance dx - , the work done is ( 29 ( 29 ( 29 . negative is dx dx x g - The total work done is then ( 29 ( 29 . 32 2 2 4 / 0 2 0 4 / gl x g dx x g l l = = - b) The center of mass of the hanging piece is initially a distance
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Unformatted text preview: l /8 below the top of the table, and the hanging weight is ( 29 ( 29 4 / l g , so the work required to raise the rope is ( 29 ( 29 ( 29 , 32 / 8 / 4 / 2 gl l l g = as before....
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This document was uploaded on 02/04/2008.

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