Izinkinga nezixazululo ze-Springs ezilandelanayo nezihambisanayo
1. Into engamagremu angu-160 inamathela kolunye uhlangothi lwesipilingi kanti ushintsho lobude besipilingi luyi-4 cm. Luyini ushintsho lobude bezintathu iziphethu ezixhunywe ngochungechunge nangokuhambisana, njengoba kuboniswe esithombeni esingezansi?
Kwaziwa:
Ushintsho lobude besiphethu (Δx) = 4 cm = 0.04 m
Imisa (m) = amagremu angu-160 = 0.16 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Isisindo (w) = mg = (0.16)(10) = 1.6 AmaNewton
Kufunwa: Ushintsho lobude beziphethu ezintathu (Δx)
Isixazululo:
Isibalo se Umthetho kaHooke :
k = w / Δx = 1.6 / 0.04 = 40 N/m
Iziphethu ezintathu zinokuqina okufanayo, k = 40 N/m.
Nquma i-constant efanayo :
Intwasahlobo 2 (k2) kanye nentwasahlobo 3 (k3) i-tare ixhunywe ngokulingana. I-constant efanayo :
k23 = k2 +k3 = 40 + 40 = 80 N/m
Intwasahlobo 1 (k1) kanye nentwasahlobo 23 (k23) zixhunywe ochungechungeni. I-constant efanayo :
1/k = 1/k1 + 1/k23 = 1/40 + 1/80 = 2/80 + 1/80 = 3/80
k = 80/3
Nquma ushintsho lobude beziphethu ezintathu:
Δx = w / k = 1.6 : 80/3 = (1.6)(3/80) = 4.8 / 80 = 0.06 m = 6 cm
2. Iziphethu ezintathu ezine-constant efanayo exhunywe ochungechungeni futhi ehambisanayo, kanye nento engamakhilogremu angu-2 enamathiselwe kolunye uhlangothi lwesipilingi, njengoba kuboniswe esithombeni esingezansi. I-Spring constant ingu-k1 = k2 = k3 = 300 N/m. Luyini ushintsho lobude beziphethu ezintathu. Ukusheshisa ngenxa yamandla adonsela phansi kungu-g = 10 ms-2.
Kwaziwa:
I-k engaguquki yasentwasahlobo1 = k2 = k3 = 300 Nm-1
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 ms-2
Isisindo sento (m) = 2 kg
Isisindo sento (w) = mg = (2)(10) = 20 Newtons
Kufunwa: Ushintsho lobude beziphethu ezintathu (Δx)
Isixazululo:
Nquma i-constant efanayo :
Intwasahlobo 1 (k1) kanye nentwasahlobo 2 (k2) zixhunywe ngokulingana. I-constant efanayo :
k12 = k1 +k2 = 300 + 300 = 600 N/m
Intwasahlobo 3 (k3) kanye nentwasahlobo 12 (k12) zixhunywe ochungechungeni. I-constant efanayo :
1/k = 1/k3 + 1/k12 = 1/300 + 1/600 = 2/600 + 1/600 = 3/600
k = 600/3 = 200 N/m
Nquma ushintsho lobude beziphethu ezintathu:
Δx = w / k = 20/200 = 2/20 = 1/10 = 0.1 m
3. Iziphethu ezintathu zixhunywe ngochungechunge nangokuhambisana, njengoba kuboniswe esithombeni esingezansi. Uma i-spring constant k = 50 Nm-1 kanye nesisindo esingamagremu angu-400 esinamathiselwe kolunye uhlangothi lwesiphethu. Luyini ushintsho lobude beziphethu ezintathu?
Kwaziwa:
I-Spring constant 1 (k)1) = k = 50 Nm-1
I-Spring constant 2 (k)2) = k = 50 Nm-1
I-Spring constant 3 (k)3) = 2k = 2 (50 Nm-1) = 100 Nm-1
Isisindo sento (m) = 400 amagremu = 0.4 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Isisindo sento (w) = mg = (0.4)(10) = 4 Newtons
Kufunwa: Ushintsho lobude (Δx)
Isixazululo:
Nquma i-constant efanayo :
Intwasahlobo 1 (k1) kanye nentwasahlobo 2 (k2) zixhunywe ngokulingana. I-constant efanayo :
k12 = k1 +k2 = 50 + 50 = 100 N/m
Intwasahlobo 3 (k3) kanye nentwasahlobo 12 (k12) zixhunywe ochungechungeni. I-constant efanayo :
1/k = 1/k3 + 1/k12 = 1/100 + 1/100 = 2/100
k = 100/2 = 50 N/m
Nquma ushintsho lobude beziphethu ezintathu:
Δx = w / k = 4 / 50 = = 0.08 m = 8 cm
- Ukuhlanganisa izipringi ngokulandelana kuyithinta kanjani i-constant yentwasahlobo iyonke?
- Impendulo: Uma iziphethu zihlanganiswa ngochungechunge, i-spring constant iyonke iyancishiswa. I-reciprocal ye-spring constant efanayo iyisamba se-reciprocals ye-spring constant ngayinye: 1/k .
- Ukuguquguquka kwentwasahlobo iyonke kushintsha kanjani lapho iziphethu zihlanganiswa ndawonye?
- Impendulo: Ukuhlanganisa iziphethu ngendlela efanayo kuphumela ku-spring constant iyonke eyisamba seziphethu ngazinye: k .
- Uma iziphethu ezimbili ezifanayo zihlelwe ngokulandelana, i-constant yentwasahlobo ehlanganisiwe iqhathaniswa kanjani ne-constant yentwasahlobo yentwasahlobo ngayinye?
- Impendulo: I-spring constant ehlanganisiwe izoba yingxenye ye-spring constant yesinye seziphethu ngazinye.
- Kwenzekani ekwandisweni noma ekucindezelweni kwezipilingi ngokulandelana lapho kusetshenziswa amandla?
- Impendulo: Kuma-springs alandelanayo, amandla afanayo abangela ukuthi i-spring ngayinye inwebe noma icindezeleke, kodwa i-extension iyonke (noma i-compression) iyisamba se-extensions (noma i-compression) yama-springs ngamanye.
- Uma iziphethu ezihambisanayo zibhekene namandla, lawo mandla asatshalaliswa kanjani?
- Impendulo: Kuma-springs ahambisanayo, amandla asatshalaliswa phakathi kwama-springs ngokusekelwe kuma-spring constant awo. Ama-springs ane-spring constant ephezulu azothwala ingxenye enkulu yamandla kunalawo ane-spring constant ephansi.
- Kungani iziphethu ezilandelanayo zingacatshangwa njengesiphethu esisodwa esinobude obude?
- Impendulo: Izipilingi ezilandelanayo zinomphumela ohlangene ofana nokwelula isipilingi esisodwa eside. Izandiso noma ukucindezelwa kwezipilingi ngazinye kuyahlangana, njengoba nje bekungenza esipilingini esisodwa eside.
- Amandla angase agcinwe eziphethwini ngokulandelana aqhathaniswa kanjani nalawo aseziphethwini ahambisana namandla afanayo asetshenziswayo?
- Impendulo: Iziphethu ezilandelanayo zigcina amandla amaningi angaba khona kuneziphethu ezihambisanayo zamandla afanayo asetshenziswayo ngoba zidlula ekunwetshweni noma ekucindezelweni okukhulu okuhlangene.
- Uma esinye sezipilingi esisesimisweni esifanayo siphuka noma singasebenzi kahle, kwenzekani ekuziphatheni kwesistimu iyonke?
- Impendulo: Uma intwasahlobo eyodwa ekucushweni okufanayo iphuka, intwasahlobo esele izoqhubeka isebenza. Kodwa-ke, isisekelo sentwasahlobo iyonke yesistimu sizoncipha, futhi uhlelo ngeke lukwazi ukusebenzisa amandla okubuyisela amaningi njengakuqala.
- Kungani iziphethu ezilandelanayo zisengozini enkulu yokuguquguquka okukhulu kunalezo ezihambisana namandla afanayo asetshenziswayo?
- Impendulo: Kuma-spring alandelanayo, amandla afanayo asebenza entwasahlobo ngayinye, okwenza ngayinye inwebeke noma icindezeleke. Ukuguquguquka okuphelele kuyisamba sokuguquguquka ngakunye. Ngesikhathi esifanayo, amandla asatshalaliswa phakathi kwama-spring, ngakho-ke ngayinye ithola amandla asebenzayo anciphile, okuholela ekuguqukeni okuncane ngakunye.
- Ezisetshenzisweni ezisebenzayo, kungani onjiniyela bengakhetha ukusebenzisa iziphethu ezifanayo kunokuba basebenzise uchungechunge?
- Impendulo: Onjiniyela bangase bakhethe iziphethu ngesikhathi esifanayo ukuze bafinyelele izinga eliphezulu le-spring constant, okuholela ekuziphatheni okuqinile. Lokhu kusethwa kungaphinde kuhlinzeke ngokuphindaphindeka; uma i-spring eyodwa yehluleka, uhlelo luyaqhubeka nokusebenza, yize luncishisiwe izinga le-spring constant.