Question

A boat at anchor is reached by waves whose crests are 150 m apart and whose velocity is 15
m/s. These waves strikes the boat once every
(A) 2250 second
(B) 2.25 second
(C) 10 second
(D) 0.1 second
​

Answer 1

it's 10 seconds


that is option C

Answer 2

Time = distance/ velocity

= 150/15

= 10 s.

option (C)