AP Physics 1 Question 85: Answer and Explanation

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Question: 85

5. In a spring-block oscillator, the maximum speed of the block is

  • A. proportional to amplitude
  • B. proportional to the square of amplitude
  • C. proportional to the square root of amplitude
  • D. inversely proportional to the square root of amplitude

Correct Answer: A

Explanation:

A Apply Conservation of Energy to compare when the block is at its equilibrium position to when the block is at greatest displacement:

E1 = E2
K1 + V1 = K2 + V2
K1 = V2
mv2max = kA2