Spoed van transversale golwe – probleme en oplossings
1.
If the time interval required to travel from A to B is 2 seconds, determine the speed of the transversale golf.
Bekend:
Afstand A-B = 6 meters
Tydsinteval A-B = 2 sekondes
Gesoek: Speed of transverse wave
oplossing:
1 golflengte has 1 crest and 1 trough. There is 4 wavelength between A and B. Distance between A and B is 6 meters so that 1 wavelength (λ) = 6 meters / 4 = 1.5 meters.
die time interval required to travel from A to B is 2 seconds so that the time interval required to travel 1 wavelength = period (T) = 2 seconds / 4 = 0.5 seconds.
The equation of the speed of wave :
v = λ f = λ / T
v = speed of wave, λ = golflengte, f = frekwensie, T = period
The speed of wave :
v = 1.5 meters / 0.5 sevoorwaardes
v = 3 meters/ sekond
2. If the time interval required to travel from A to B is 8 seconds, determine the speed of transverse wave.
Bekend:
There are two wavelength.
1 golflengte (λ) = 2 x 4 meters = 8 meters
Period (T) = 8 sevoorwaardes / 2 golflengtes = 4 seconds / golflengte
Gesoek: Speed of wave (V)
oplossing:
The speed of wave calculated using the equation of the speed of wave :
v = f λ = λ/T
v = 8 meters / 4 sevoorwaardes
v = 2 meters/ sekond
