Question

"As you sit in a fishing boat, you notice that 12 waves pass the boat every 45 s. If the distance from one crest to the next is 9.2 m , what is the speed of these waves?"

Answer 1

2.4564 m/s

Step-by-step explanation:

Number of waves in 1 second

`(12)/(45)=0.267\ Hz`

This is the frequency 0.267 Hz

The distance mentioned in the question is the

`\lambda` = Wavelength = 9.2 m

The speed of wave is

`v=f\lambda`

`\Rightarrow v=0.267* 9.2`

`\Rightarrow v=2.4564\ m/s`

The speed of the wave is 2.4564 m/s