How much will the wire stretch? Help?

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Question

science physics

Answer 1

Answer #1

Here , for aluminium

Young Modulus , Y = 6.9 *10^13 Pa

Now , let the wire streching length is l

as Y = stress/strain

strain = stress/Y

l/L = F/A*Y

l/2.5 = 4*9.8/(6.9 *10^13 * 3.141 * (0.0015/2)^2)

solving for l

l = 2.545 *10^-6 m

the wire strech by 2.545 *10^-6 m

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Answer 2

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