A sinusoidal transverse wave of amplitude ym = 8.4 cm and wavelength = 5.3 cm travels on a stretched cord. Find the ratio of the maximum particle speed (the speed with which a single particle in the cord moves transverse to the wave) to the wave speed.

Respuesta :

Answer:

The ratio is 9.95

Solution:

As per the question:

Amplitude, [tex]y_{m} = 8.4\ cm[/tex]

Wavelength, [tex]\lambda = 5.3\ cm[/tex]

Now,

To calculate the ratio of the maximum particle speed to the speed of the wave:

For the maximum speed of the particle:

[tex]v_{m} = y_{m}\times \omega[/tex]

where

[tex]\omega = 2\pi f[/tex] = angular speed of the particle

Thus

[tex]v_{m} = 2\pi fy_{m}[/tex]

Now,

The wave speed is given by:

[tex]v = f\lambda[/tex]

Now,

The ratio is given by:

[tex]\frac{v_{m}}{v} = \frac{2\pi fy_{m}}{f\lambda}[/tex]

[tex]\frac{v_{m}}{v} = \frac{2\pi \times 8.4}{5.3} = 9.95[/tex]