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Use the following data to determine the length L of a wir...

Use the following data to determine the length L of a wire when a force of 30N is applied, assuming Hooke's law is obeyed
Force applied/N051030length of wire/mm500.0500.0501.0L

A.

3.0mm

B.

3.5mm

C.

503.00mm

D.

503.5mm

E.

506.0mm

Correct answer is C

F α e

F = ke

K = Fe=50.5=10

when F = 30, e = FK=3010=3

L = 500 + 3 = 503.00