A helical spring has spring constant k. If the wire diameter, spring diameter and the number of coils is all doubled then the spring constant of the new spring becomes

A helical spring has spring constant k. If the wire diameter, spring d

1.	A helical spring has spring constant k. If the wire diameter, spring diameter and the number of coils is all doubled then the spring constant of the new spring becomes
A.	k/2
B.	k
C.	8k
D.	16k
Answer» C. 8k

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A helical spring has spring constant k. If the wire diameter, spring diameter and the number of coils is all doubled then the spring constant of the new spring becomes

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