I just started learning Simple Harmonic Motion and encountered a word Phase Constant [itex]\phi[/itex] . Actually it appeared as f(t)=rsin([itex]\omega t+\phi[/itex]) I am confused whether phase constant is actually the initial position of the particle(which execute SHM) and therefore the point on graph at time=0 or not!!!
welcome to pf! hi justwild! welcome to pf! you're right, the phase constant is the initial angle (or initial phase): the angle (or phase) at t = 0
If [itex]\phi[/itex] is the initial angle then I think the sinusoidal graph will show different starting points(t=0) for different values of [itex]\phi[/itex] of the same amplitude and frequency of vibration. Is that so???
you can eliminate the phase constant by changing the starting time … if you replace t by t + φ/ω, then the phase constant is zero not following you