AP Physics 1 Question 451: Answer and Explanation
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9. A horizontal spring is attached to a 5 kg block. When the block is pulled 5 cm to the right, the restoring force has a magnitude of 6 N. What is the frequency of the spring?
- A. 0.32 Hz
- B. 0.56 Hz
- C. 0.78 Hz
- D. 0.98 Hz
Correct Answer: C
Apply Hooke's Law to calculate the force constant of the spring:
The frequency of a spring-block oscillator is given by