AP Physics 1 Question 451: Answer and Explanation

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Question: 451

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

Explanation:

C

Apply Hooke's Law to calculate the force constant of the spring:

The frequency of a spring-block oscillator is given by