Answer: 0.33 Hz
Explanation: from the question, the distance between two successive crest is wavelength = 20.9m and the ocean rise and fall through one complete cycle every 3.00s which is the period. Hence T = period = 3.00s
Frequency = 1/ period
Frequency = 1/3 = 0.33 Hz
Answer:
(a) t = 0.75 s
(b) d = 26 m
Explanation:
Height, h = 12 m
Angle, A = 30 degree
initial velocity, u = 40 m/s
(a) Let the time is t.
Use second equation of motion
(b) d = u cos A t
d = 40 x cos 30 x 0.75 = 26 m
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