The weight of the spring pendulum has a mass of 200 g. The period of the pendulum is 2 s. What additional weight must
| December 11, 2020 | education
The weight of the spring pendulum has a mass of 200 g. The period of the pendulum is 2 s. What additional weight must be suspended on the pendulum so that it would enter into resonance at an external force frequency of 0.25 Hz?
Period = 1 / frequency, which means to get a frequency of 0.25 Hz (0.25 Hz, because the body enters resonance when its frequency coincides with the frequency of the external force), you need to have a period of 4 seconds. This means that you need to add another 200 grams to this load (200 grams) to get 400 grams.
Answer: 200 g
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