A 8.2 N weight is supported by a weightless cable where portion AB of the cable

Question

A 8.2 N weight is supported by a weightless cable where portion AB of the cable is horizontal.

Do not round intermediate calculations, however for display purposes report intermediate steps rounded to four significant figures. Give your final answer(s) to three significant figures. A 8.2-N weight is supported by a weightless cable where portion .-1B of the cable is horizontal. The coefficients of static and kinetic friction are 0.512. Part 1 out of 2 Determine the value of P so that downward motion of the 8.2-N weight is impending.

Explanation / Answer

8.2N is impending implies Tcd= 8.2 N

Tcd/Tab = e^(static friction* angle wrapped) = e^(0.512*pi/2) = 2.2350

Thus Tab= Tcd/2.2350 = 3.6689N

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