Answer:
v = 0.15 m/s
Step-by-step explanation:
First, we need to find the frequency. The frequency is equal to the number of cycles per second. Taking into account the first graph, we can see that the wave makes 3 cycles in 1 second, so the frequency is
f = 3 cycles/ 1 second = 3 Hz
Then, the wavelength is equal to the distance of one cycle, taking into account the second graph, we get
λ = 0.1 m/ 2 cycles = 0.05 m
Therefore, the speed is equal to
v = λf
v = (0.05 m)(3 Hz)
v = 0.15 m/s
So, the answer is
v = 0.15 m/s