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Question 31196
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Simple Harmonic Motion: SHM and Gravity MCQ

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SHM and GravityHardQuestion 31196

Question

Vertical oscillation of a mass on spring: equilibrium is displaced downward by d = mg/k. If mass is pulled extra distance x₀ and released, amplitude of oscillation is:
  1. A
    d + x₀
  2. B
    x₀
    Correct
  3. C
    d
  4. D
    x₀ − d

Correct answer

x₀

Explanation

In vertical spring-mass: the equilibrium position is the new origin. Additional displacement from new equilibrium = x₀. Amplitude of oscillation about new equilibrium = x₀.

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