Question

a boat at anchor is rocked by waves whose crests are 100m apart and whose speed is 25 m/s .these waves reach the boat every hoew many ?

Answer 1

v = λ/T

Where, λ is the wave length of the wave.

v is the velocity of the wave.

T is the time period of the wave.

25 = 100 / T

T = 4 sec.

So wave hits the boat in every 5 sec.