The frequency of the particle in SHM is 12Hz. It's amplitude is 4 cm. It's initial displacement is 2cm towards positive extreme position. The equation for the displacement is....
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f=12Hz
w=2πf=24π rad/sec
A=4cm;x=2cm
x=Asinϕ
2=4sinϕ
Thus ϕ=π6
Thus
x=0.04sin(24πt+π6)
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Refer this attachment mate......... Hope it helps u
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