Period of a Spring-Mass Oscillator

T=2πmkT = 2\pi \sqrt{\tfrac{m}{k}}

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A mass on a spring oscillates with a period set only by the mass and the stiffness — not by how far you pull it before letting go. Heavier mass means a slower bounce; a stiffer spring means a faster one. One kilogram on a 100 N/m spring cycles every 2π√(1/100) ≈ 0.63 s. Engineers run the relation in reverse, timing oscillations to measure the effective stiffness of real structures.

Period of a Spring-Mass Oscillator
T=2πmkT = 2\pi \sqrt{\tfrac{m}{k}}
Where
  • TT= Period
  • mm= Mass
  • kk= Spring constant
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