The vertical velocity of a particle on a string is expressed by vy(x,t) = 2.55 (m/s)cos(3.45x +32.4t). (a) What is the expression of the vertical displacement of the string? (b) What is the wavelength of the string’s oscillation? (c) If the linear density of the string is 0.105 kg/m, find the tension in the string.
