Sixty complete waves pass a particular point in 4s. If the distance between three successive troughs of the waves is 15 m, calculate the speed of the waves.
a
75.0 ms\(^{-1}\)
b
225.0 ms\(^{-1}\)
c
300.0 ms\(^{-1}\)
d
112.5 ms\(^{-1}\)
Explanation
Correct Option
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Discussions (6)
obajibriight
1 month ago
Option d, 112.5ms-¹ is correct as shown by the AI, but what is entered into the system as 'correct' is wrong.
nyima12
2 months ago
F=n/t
F:frequency
n:number of oscillations 60
t:time in seconds 4s
F=60÷4
=15Hz
V=F×wave length
V=15×15
=225m/s
