Sekundamer yordamida aniqlangan. Shunday keyin purjinaning uchiga Q

52- Misol.(32.18). Ogirligi Q=12kg bolgan jism purjina uchiga mahkamlangan
Va garmonik tebranma xarakat qiladi.Jism 45 sekunda 100 marta tebranishi
Sekundamer yordamida aniqlangan.Shunday keyin purjinaning uchiga Q₁=6kg ogirlikdaagi yuk qoshimcha maxkamlangan.Purjinaga mahkamlangan ikkita yukning tebranish davrini aniqla
Berilgan: Echish:Purjinaga xar ikkala yuk mahkamlanganda erkin
Q=12kg garmonik tebranish davrini (69.30) formulaga acocan
T=45s T₁=2π (1)
n=100 ifodani topamiz.Yuklarni umumiy massasini Q=6kg quydagi
M_y=m+m₁= (2)
Formula yordamida xisoblanadi.T₁ ni hisoblash uchun k ni bilish lozim.Purjina faqat Q yuk maxkamlangan vaqtda uning tebranish davri
T=2π = =0.45s (3)
(3) formulani T=2π shakilda yozib,bundan K aniqlanadi:
T₁=
Oxirgi formulaga T,q va Q₁ kattalikning qiymatini qoyib hisoblaymizda T₁ topamiz
T=0.55s
53-misol. (32.19). 52 misolning shartiga asosalanib purjinaga Q yuk va ikkala Q+Q₁ yuk osilganda har bir yukning tebranish qonuni aniqlang
Yechish; yuklar erkin garmonik tebranma harakatda bo`ladi deb,purjinaga faqat Q yuk osilganda (purjinaning og`rligni hisobga olmagan holda ) tebranishning difrensal tenglamasni quydagicha yozamiz :
X+ώ ² X=0 (1)
Q+Q₁ yuk osilganda diferensal tenglama quydagicha yozamiz
X+ώ ² X=0
Bu yerda ώ=
ώ=