(a) A rope of length L lies in a straight line on a frictionless table, except for...
Question:
(a) A rope of length L lies in a straight line on a frictionless table, except for a very small piece at one end which hangs down through a hole in the table. This piece is released, and the rope slides down through the hole. What is the speed of the rope at the instant it loses contact with the table?
(b) Answer the same question, but now let the rope lie in a heap on a table, except for a very small piece at one end which hangs down through the hole. Assume that the rope is greased, so that it has no friction with itself.
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a Let be the mass density of the rope From conservation of energy we know that the ropes final kinetic energy which is L v 2 2 equals the loss in pote...View the full answer
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