Question

What is the frequency of a pendulum that is moving at 30 m/s with a wavelength of 0.35

Answer 1

v=f*wavelength
30m/s=f*(0.35m)
f=85.7 Hz

Answer 2

85.7Hz

Step-by-step explanation:

We know that the wave velocity is given by:

v=f*λ

where:

f is the frequency

λ is the wavelength

rearranging the equation we have:

f=v/λ

`f=(30m/s)/(0.35m)\\f=85.7s^(-1)=85.7Hz`

so the pendulum has a frequency of 85.7Hz