What is the fractional increase in the threads length, Ask an Expert

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An orb weaver spider with a mass of 0.25 g hangs vertically by one of its threads. The thread has a Young's modulus of 4.7 x 109 N/m2 and a radius of 1.11 10-5 m.

a) What is the fractional increase in the thread's length caused by the spider? same as that of the spider's thread?

b) Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional increase in length is to be the same as that of the spider's thread?

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Reference No.:- M9651042

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