Answer:
(a) 5.88 s
(b) 0.17 Hz
(c) 31.4 m
(d) 5.338 m/s
Explanation:
From the question,
(a) Period = time between successive crest = t/n............ Equation 1
where t = time, n = number of wave crest
Given: t = 29.4, n = 5
therefore,
Period (T) = 29.4/5 = 5.88 s.
(b) Frequency = 1/period
Frequency = 1/5.88
Frequency = 0.17 Hz.
(c) wavelength = distance between two successive crest = 31.4 m
(d) using,
v = λf............... Equation 2
Where v = speed, f = frequency, λ = wavelength
given: f = 0.17 Hz, λ = 31.4 m
Substitute into equation 2
v = 0.17(31.4)
v = 5.338 m/s
