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The equation of motion of a damped harmonic oscillator subject to a damping force -bv is:

  1. (a) mẍ = -kx
  2. (b) mẍ = -kx - bẋ
  3. (c) mẍ = +kx
  4. (d) mẍ = Fₑₓₜ
Answer and solution

Answer (b) mẍ = -kx - bẋ

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Study Simple Harmonic Motion

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