In a simple spring mass vibrating system, the natural frequency \[{{\omega }_{n}}\] of the system is (k is spring stiffness m is mass and \[{{m}_{s}}\] is spring mass):

\[\sqrt{\frac{k}{m+3{{m}_{s}}}}\]

\[\sqrt{\frac{k}{m-\frac{{{m}_{s}}}{3}}}\]

\[\sqrt{\frac{k}{m+\frac{{{m}_{s}}}{3}}}\]

\[\sqrt{\frac{k}{m-3{{m}_{s}}}}\]

In a simple spring mass vibrating system, the natural frequency \[{{\o

1.	In a simple spring mass vibrating system, the natural frequency \[{{\omega }_{n}}\] of the system is (k is spring stiffness m is mass and \[{{m}_{s}}\] is spring mass):
A.	\[\sqrt{\frac{k}{m-\frac{{{m}_{s}}}{3}}}\]
B.	\[\sqrt{\frac{k}{m+\frac{{{m}_{s}}}{3}}}\]
C.	\[\sqrt{\frac{k}{m+3{{m}_{s}}}}\]
D.	\[\sqrt{\frac{k}{m-3{{m}_{s}}}}\]
Answer» C. \[\sqrt{\frac{k}{m+3{{m}_{s}}}}\]

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In a simple spring mass vibrating system, the natural frequency \[{{\omega }_{n}}\] of the system is (k is spring stiffness m is mass and \[{{m}_{s}}\] is spring mass):

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