Shape of string transmitting wave along x-axis at some instant is shown. Velocity of point P is  v=4π cm/s and  θ=tan−10.004π

Wave length of the wave, λ=1m  maximum particle velocity, Vmax=Aω=4π ∴wave velocity, v=∂y/∂t∂y/∂x=4π×10−2tanθ=4π×10−24π×10−3=10m/s ∵wave velocity=particle velocityslope of the wave also frequency, f or  ϑ=Vλ=V1=10HzVmax=Aω4π×10−2=A2π(10)Amplitude of the waveA=2×10−3m   and maximum accelertion of the particle amax=Aω2=80π2cm/sec2