Physics help!? Little Jimmy sits on a beach and watches a bug jumping towards him across the top of the water once every second. He notices that the water waves that are created hit the shore twice a second.

A. How fast is the bug moving across the water? Assume the speed of the water waves are 3 m/s.

B. What is the wavelength of the waves hitting the shore?

plz help i don%26#039;t kno how to do part B but i think i got the right anwser to A.!

Best Answer - Chosen by Voters

It%26#039;s way easier than you think.

I%26#039;m not sure, but I think the wave length is 2. 67% 2 Votes

Other Answers (2)

• There is no way that you got part A without knowing part B. If the waves travel 3m/s and they hit the shore 1/2s/w then the distance between them is 3/2m/w. (Pay attention to units!) 0% 0 Votes
• A.  The bug is jumping off ½ second behind the wave from its previous jump.  If the wave is moving at 3 m/sec, the bug must be jumping off 1.5 meters behind the wave and 1.5 meters from his previous jump point.
  
  B.  λ = c/F
  F = 2/sec
  c = 3 m/sec
  λ = 1.5 meters 33% 1 Vote