The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

The equation of free vibrations of a system is (d²x/dt²) +36 π²x,

1.	The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is
A.	3 Hz
B.	3π Hz
C.	6 Hz
D.	6π Hz
Answer» B. 3π Hz

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The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

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