Answers

2015-09-12T17:57:28+05:30
Let amplitude of SHM = A₀

A = A₀ sin(ωt)
where A = displacement
t = time
ω = angular frequency = 2π/T


given that A = A₀/2
A₀/2 = A₀ sin(ωt)
⇒ 1/2 = sin(ωt)
⇒ 1/2 = sin(2π/T × t)
⇒ 2π/T × t = sin⁻¹(1/2) = π/6
⇒ t = π/6 × T/2π
⇒ t = T/12
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