Understanding the Concepts

* Frequency (f): The number of vibrations (or cycles) per second. In this case, the frequency is 2 Hz (twice each second).

* Wavelength (λ): The distance between two corresponding points on consecutive waves (e.g., crest to crest or trough to trough). We're given the distance traveled (M), but we need to clarify if M represents the wavelength or the total distance the wave travels in one second.

* Wave Speed (v): The distance a wave travels in one second.

Calculations

* If M represents the wavelength (λ):

* Wave speed (v) = frequency (f) * wavelength (λ)

* v = 2 Hz * M

* v = 2M meters per second

* If M represents the total distance traveled in one second:

* The wave speed is simply M.

* v = M meters per second

Therefore, the wave speed is either 2M meters per second (if M is the wavelength) or M meters per second (if M is the total distance traveled in one second).

Important Note: Make sure you understand what the given distance "M" represents to get the correct wave speed.