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Asked by pat

a metal wire 1.0 mm in diameter and 2.0 m long hangs vertically with a 5.0 kg mass suspended from it. if the wire stretches 1.2 mm under the tension, what is the value of the young's modulus for metal?
14 years ago

Answers

Answered by drwls
Stress = E*strain
E is Young's modulus

E*(delta L/L) = M*g/(pi*R^2)

deltaL/L - 1.2/2000 = 6*10^-4
is the strain

M*g/(pi*R^2) = 6.2*10^7 N/m^2

Solve for E. It is about 10^11 N/m^2
14 years ago
Answered by Zagwa queen
Not correct
3 years ago

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