a)
stress = 350* 9.8* 8.5 / A
5* 10^8 = 29155 / A
A = 5.831* 10^-5 m^2
=====
b)
as we know
dL = PL / AY
dL = 350* 9.8*4.9 / ( 5.831* 10^-5* 2* 10^11)*
dL = 1.441* 10^-3 m
=======
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A 350 kg chandelier is suspended from vertical steel cable. The cable is 49 m long....
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