Answer:
The frequency of the wave = 10 Hz.
Step-by-step explanation:
Wave: A wave is a disturbance that travels through a medium a transfer energy from one point to another in the medium without causing and permanent displacement of the medium itself.
V = λf .................. Equation 1
making f the subject of the equation,
f = V/λ.................... Equation 2
Where V = velocity of the wave, λ = wavelength of the wave, f = frequency of the wave.
Given: V = 15 m/s², λ = 4.5 m.
Substituting these values into equation 2,
f = 15/1.5
f = 10 Hz.
Therefore the frequency of the wave = 10 Hz.