Liwiro la mafunde opingasa - mavuto ndi mayankho
1.
Ngati nthawi yofunikira kuti muyende kuchokera ku A kupita ku B ndi masekondi awiri, dziwani liwiro la mafunde opingasa.
Zodziwika:
Mtunda AB = mamita 6 pa sekondi
Nthawi yopuma AB = masekondi awiri
Kufunidwa: Liwiro la mafunde opingasa
Yankho:
Kutalika kwa mafunde 1 kuli ndi crest 1 ndi through 1. Pali mafunde 4 pakati pa A ndi B. Mtunda pakati pa A ndi B ndi mamita 6 kotero kuti kutalika kwa mafunde 1 ( λ) = mamita 6 s / 4 = mamita 1.5 s.
Nthawi yofunikira kuti munthu ayende kuchokera ku A kupita ku B ndi masekondi awiri kotero kuti nthawi yofunikira kuti munthu ayende ndi 1 wavelength = period (T) = 2 sec c on ds / 4 = 0.5 sec c on ds.
Kuyerekeza kwa liwiro la mafunde:
v = λ f = λ / T
v = liwiro la mafunde , λ = kutalika kwa mafunde , f = pafupipafupi , T = nthawi
Liwiro la mafunde:
v = mamita 1.5 s / 0.5 se conds
v = 3 mamita s /se cond
[irp]
2. Ngati nthawi yofunikira kuti muyende kuchokera ku A kupita ku B ndi masekondi 8, dziwani liwiro la mafunde opingasa.
Zodziwika:
Pali ma wavelength awiri.
Kutalika kwa 1 kwa mafunde ( λ) = 2 x 4 mamita s = 8 mamita s
Nthawi (T) = 8 se conds / 2 wavelengths = 4 sec pa ds / wavelength
Kufunidwa: Liwiro la mafunde (v)
Yankho:
Liwiro la mafunde limawerengedwa pogwiritsa ntchito equation ya liwiro la mafunde:
v = f λ = λ/T
v = mamita 8 s / 4 se conds
v = 2 mamita s /se cond
[irp]
