Answer:
5m/s
Explanation:
Guitar strings moves like a wave, hence, it possesses a wavelength. Wavelength is the distance between the two wave crests. It is denoted by lambda (λ).
The wavelength of this guitar string in the question can be using the formula: λ = v/f.
Where; λ = wavelength
v = velocity or speed
f = frequency
According to the question,
λ = 2.5meters
f = 2 Hertz
v = ?
To calculate the velocity, we make v (speed) the subject of the formula, λ = v/f
We have; v = λf
We input the values of frequency (2Hz) and wavelength (2.5m) into the formula
We have; v = 2.5 × 2
v= 5
Hence, the velocity or speed of the string is 5m/s.
