APFIVE SHM Phase Angle and Initial Conditions
For a mass-spring system with SHM described by x(t) = A cos(ωt + φ), which phase angle φ would result in the mass starting from rest at t = 0?
A
φ = 0 or φ = π
B
φ = π/2 or φ = 3π/2
C
φ = π/4 or φ = 5π/4
D
Any value of φ
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