A spring has an unstretched length of 600 mm. If it was stretched by 400 mm, the work done is 800 Joules. What is the stiffness of the spring?  A) 100 N/m B) 10 KN/m C) 1000 N/m D) 1 KN/m

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A spring has an unstretched length of 600 mm. If it was stretched by 400 mm, the work done is 800 Joules. What is the stiffness of the spring? 

A) 100 N/m
B) 10 KN/m
C) 1000 N/m
D) 1 KN/m
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