Spring-Mass Time Period (T = 2π√(m/k))

jee-mainjee-advancedneet-ug

T = 2π√(m/k)

What each symbol means

SymbolWhat it stands for
TTime period (s)
kSpring constant (N/m)
mMass attached to spring (kg)

When to use this

For a mass-spring system (horizontal or vertical). Independent of amplitude — hallmark of SHM. For vertical spring, equilibrium position shifts by mg/k but T remains same. For two identical springs on either side: effective k = 2k, so T = 2π√(m/2k). NCERT derives from F = -kx. Frequency ν = (1/2π)√(k/m).