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## Main Question or Discussion Point

So heres the equation

y(x,t) = A cos (kx - wt)

where A is the amplitude of vibration and k = 2pi/lambda

i have already dealt with SHM or SHO and i completely understand the equations like

x = Acos(wt + phi)

but i didnt really dealt with waves and the equation of travelling wave is kinda difficult to understand so if someone could I dont know prove or explain how the equation works i would be really happy

thanks in advance

y(x,t) = A cos (kx - wt)

where A is the amplitude of vibration and k = 2pi/lambda

i have already dealt with SHM or SHO and i completely understand the equations like

x = Acos(wt + phi)

but i didnt really dealt with waves and the equation of travelling wave is kinda difficult to understand so if someone could I dont know prove or explain how the equation works i would be really happy

thanks in advance