A boat at anchor is rocked by waves whose crest are 100m apart and whose velocity is 25ms^-1. At what interval does the wave crest reach the boat?

Avnie

2 years ago

Frequency=Velocity/wavelength
=25/100,
F=0.25Hz
The period,
T=1/f =1/0.25
=4s

AlbertEinstein247

1 year ago

velocity= wavelength × frequency
25ms-¹= 100m * frequency
therefore
frequency= 25ms-¹/100m
=0.25 s-¹ or 0.25 Hz
Time interval= period= T
T= f-¹
=0.25Hz -¹
4 seconds

Falconsplash

2 years ago

wavelength =velocity x time
w =100,v=25ms,t=?
100/25=t
4s=t

mezkid

10 years ago

V = fh

25=100xh

25/100=0.25s (d)