Yintoni na le uqina emboxo siyifumane nendlela ethe yabalwa ngayo?

Ngokuqhelekileyo, xa abantu bethetha uyahamba, simele sicinge into enambuzelayo kumgca othe ngqo. Isantya yale intshukumo kuthiwa yomgama, kwaye ukubalwa ixabiso layo avareji ilula: lwanele ukufumana umlinganiselo umgama ohanjiweyo yi ngexesha apho kuyo ndachukumiseka umzimba. Ukuba into isusiwe ecaleni achazwe apha, kule meko kumiselwa akusayi le yomgama kunye Velocity emboxo. Loluphi uhlobo ixabiso siyifumane nendlela ethe yabalwa ngayo? Oku nje kuya kuthetha ngayo kweli nqaku.

Velocity emboxo: ingqiqo kunye nefomula

Xa mass kwindawo lihamba kwisantya umtya yeentshukumo bayo bangonakala luphawulwa engile ujikeleziso radius lebhokisi into ihambe kunye embindini wesangqa. Kucacile ukuba eli nani esoloko itshintsha kuxhomekeke kwixesha. Le wathandwa ngayo le nkqubo kwenzeka, yaye akukho ngaphandle Velocity emboxo. Ngamanye amazwi, umlinganiselo nokuphambukiswa embindini wesangqa yento ukuya ubude bexesha wathabatha ukwenza oku ukujikeleza into. Emboxo Velocity Formula (1) kufuneka sibhalwe kwifomu:

w = φ / t, apho:

φ - ukuvula angle uluhlu,

t - period ixesha ujikelezo.

Iyunithi yokulinganisa

Kwinkqubo ngamazwe leeyunithi eqhelekileyo (SI) ukuba abalinganiswa amagophe basebenzisa kwilayini eziqala kwisangqa. Ngoko ke, 1 Rad / s - iyunithi ezingundoqo, esetyenziswa ekubaleni i-Velocity emboxo. Ngelo xesha, akukho mntu othintela ukusetyenziswa izidanga (qaphela ukuba Rad ilingana 180 / pi, okanye 57˚18 '). Kwakhona, lo uqina emboxo ingavezwa inani ngomzuzu okanye ngomzuzwana. Ukuba intshukumo kwenzeka ngokufanayo ehlabathini achazwe apha, eli xabiso ingafunyanwa kwi kwifomula (2):

w = 2π * n,

apho n - isantya.

Kungenjalo, kanye njengoko kwenziwa ukuba isantya eqhelekileyo, ukubala ngesantya okanye nje ngephanyazo emboxo. Kufuneka kuqatshelwe ukuba ezi zingentla wobungakanani yomzobo yesiboniso. Ukuze ubone indlela yayo ngokuqhelekileyo usebenzise ulawulo ekunene-ngesandla, nto leyo isoloko isetyenziswa physics. I emboxo Velocity yomzobo nokukhomba kwicala elinye, apho intshukumo phambili lwe jija nga lasekunene-lesandla. Ngamanye amazwi, oku ngqo ecaleni axis apho umzimba, ngendlela apho ujikeleziso wabonakala ziyenzeka anti-ngku.

imizekelo ukubala

Masithi ufuna ukufumanisa ukuba yintoni na le yomgama kunye uqina emboxo kweevili, Ukuba kwakusazeka ukuba ubukhulu wayo ulingana kwimitha nye, kwaye utshintsho engile ojikelezayo ngokungqinelana nomthetho φ = 7t. Sisebenzisa ifomula wethu wokuqala:

w = φ / t = 7t / t = 7 s ^-1.

Le uqina emboxo ezifunekayo. Ngoku makhe aye kufumana kwisantya njengesiqhelo, sisiya. Njengoko usazi, v = s / t. Njengoko s kwimeko yethu - a manani achazwe ze ivili (l = 2π * r), kunye 2π - revolution omnye ngokupheleleyo, ezi zilandelayo ifunyenwe:

v = 2π * r / t = w * r = 7 * 0.5 = 3.5 m / s

Nanku omnye msebenzi ngalo mba. Yinto eyaziwayo ukuba radius umhlaba kwi-ikhweyitha ilingana ayi 6370. Ezifunekayo ukumisela isantya ehamba ngomgca emboxo sesindululo iingongoma kule ngaxeshanye, nto leyo kwenzeka ngenxa ukujikeleza umhlaba yethu axis yayo. Kulo mzekelo, kufuneka sibe ifomula yesibini:

w = 2π * n = 2 * 3.14 * (1 / ( 24 * 3600)) = 7.268 * 10 -5 Rad / s.

Kuhleli ukufumanisa ukuba yintoni na le uqina yomgama: v = w * r = 7,268 * 10 ⁵ * 6370 * 1000 = 463 m / s.