A skipper on a boat notices wave
crests passing his anchor chain
every 5 seconds.
If the wave
crests are 15 m apart, what is
the speed of the water waves in
m/s?
n
(a) 5
n
(b) 15
n
(c) 75
n
(d) 10
n
(e) 3
n
(e) 3
n
