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First arrival at equilibrium

A spring oscillator is released from rest at its positive extreme at t = 0. Its period is 0.80 s.

When does it first reach equilibrium?

Organize the givens & assumptions
  • T = 0.80 s
  • x(0) = A

Undamped harmonic motion; release from rest at positive maximum displacement; t = 0 at release.

  1. A0.80 s0.80\ \mathrm s
  2. B0 s0\ \mathrm s
  3. C0.20 s0.20\ \mathrm s
  4. D0.40 s0.40\ \mathrm s

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