MCQOPTIONS
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| 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. 3≈ì√Ñ Hz | |