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 ?
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.