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phys1618

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## Homework Statement

a father and son went on a cruise that's 20 ft long. the dad observed the cruise swayed thru 22 complete oscillations in 38 s, and one wave crest pass per/oscillation. the son noticed that each crest required 13s to reach land and the wavelenght is twice the length of the cruise. how far were they from land?

## Homework Equations

velocity=wavelengh/T

velocity=wavelengh *f

## The Attempt at a Solution

for the wavelenghth I have 13.33m because i converted ft into meters. then since they nentioned that the wavelenth is twice the size of the boat.

I wanted to divide the number of complete ossiclation 22 by the 38s, but when it added that it takes 13 seconds for each crest to reach land. I got a little confused..

should i continue to do that or should i figure how many crest had hiut land already??

please help! thanks in advance.

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