SHM Phase Angle and Initial Conditions
The position of a mass-spring system undergoing simple harmonic motion (SHM) is described by the equation x(t) = A cos(ωt + φ). Which value for the phase angle φ corresponds to the mass starting from rest at time t = 0?
A
Any value of φ
B
φ = 0 or φ = π
C
φ = π/4 or φ = 5π/4
D
φ = π/2 or φ = 3π/2
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