【Daily Question】Theoretical Foundation 2020.03.08
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Multiple-choice question: As shown in the figure, a spring-mass system is placed on a smooth inclined plane; the inclination angle α of the plane can vary between 0° and 90°. As α increases, the natural frequency of vibration of the system ( ). (A) Increase (B) Decrease (C) Remain unchanged (D) Cannot be determined. Answer: C. The natural frequency of system vibration depends only on its inherent values of m and k, and is independent of the inclination angle α. Tip: An additional reward will be given to those who can explain the problem-solving process; the answers can be seen here!
C: The natural frequency of system vibration is independent of the inclination angle.