Question

If eight water waves pass an ocean buoy each minute, and successive wave crests are 20 m apart, find the wave speed:__________________

Answer 1

Answer:

The wave speed is calculated below:

Explanation:

Given,

number of waves passed per minute = 8

time period = 1 minute = 60 s

distance between successive wave crests = 20 m

waves passing interval per second = $\frac{8}{60}$ $s^{-1}$

Now,

wave speed = 20 m × $\frac{8}{60}$ $s^{-1}$

                     = $\frac{8}3}$ m/s

                     = 2.67 m/s

Hence the wave speed is 2.67 m/s.