Isihloko mayelana nensimu yamandla adonsela phansi kanye namandla ensimu yamandla adonsela phansi
Uma ucindezela incwadi phezu kwetafula kuze kube yilapho incwadi inyakaza, isandla sakho sithinta incwadi. Ngokufanayo, uma ubopha into ngentambo, bese uyidonsa ize inyakaze, isandla sakho sithinta intambo, intambo ithinta into. Kulokhu, amandla okusunduza, amandla okudonsa, amandla okucindezela entambo, kanye namandla anjengalawa abizwa ngokuthi amandla okuthinta noma amandla okuthinta. Amandla adonsela phansi oMhlaba adonsa izithelo eziwela ebusweni bomhlaba. Noma, amandla adonsela phansi omhlaba adonsa inyanga emzileni womhlaba ayenzeka ngaphandle kokuthintana phakathi komhlaba nezithelo nenyanga.
Ngakho-ke, amandla adonsela phansi noma amandla anjengalawa abizwa ngokuthi amandla angathinti. Izithelo zingawa kanjani kanti inyanga “ingawela” emhlabeni ngaphandle kokuthintana phakathi komhlaba nezithelo nenyanga? Ososayensi, kuhlanganise noNewton , bakuthole kunzima ukucabanga ngomqondo wamandla angathinti. Ukuze kucatshangelwe kalula futhi kuqondwe umqondo wamandla angathinti, kuphakama umqondo wensimu.
Insimu yamandla adonsela phansi
Uma into enobunzima isesikhaleni, into ikhiqiza insimu yamandla adonsela phansi. Insimu yamandla adonsela phansi yento enobunzima m iboniswa ngesimo semigqa yasensimini, njengoba kuboniswe esithombeni esingezansi.
Uma ikude kakhulu nobuso bento, ibanga eliphakathi kwemigqa yensimu yamandla adonsela phansi likude kakhulu. Kunalokho, lapho iseduze nobuso bento, ibanga eliphakathi kwemigqa yensimu liyasondela. Lapho isondela, amandla ensimu yamandla adonsela phansi aba maningi. Uma insimu yamandla adonsela phansi iba ncane kakhulu. Ngokufanayo, lapho isisindo sezinto sikhulu, imigqa yensimu yamandla adonsela phansi iba seduze kakhulu. Uma inhlayiya yokuhlola ibekwa eduze kwento ekhiqiza insimu yamandla adonsela phansi, inhlayiya yokuhlola izothola amandla adonsela phansi. Ukuqondiswa kwamandla adonsela phansi kuya enkabeni yento kukhiqiza insimu yamandla adonsela phansi.
Uma ikude kakhulu nobuso bento, ibanga eliphakathi kwemigqa yensimu yamandla adonsela phansi likude kakhulu. Esikhundleni salokho, lapho iseduze nobuso bento, ibanga eliphakathi kwemigqa yensimu liyasondela. Uma isondela, kulapho amandla ensimu yamandla adonsela phansi eba maningi khona. Uma ikude, insimu yamandla adonsela phansi iba ncane. Ngokufanayo, lapho isisindo sento siba sikhulu, kulapho imigqa yensimu yamandla adonsela phansi isondela khona kakhulu.
Uma inhlayiya yokuhlola ibekwa eduze nento ekhiqiza insimu yamandla adonsela phansi, inhlayiya yokuhlola izobhekana namandla adonsela phansi. Ukuqondiswa kwamandla adonsela phansi kuya enkabeni yento kukhiqiza insimu yamandla adonsela phansi.
Amandla ensimu yamandla adonsela phansi
Amandla ensimu yamandla adonsela phansi yomhlaba abonwa yinto engaphezu komhlaba:
g = amandla ensimu yamandla adonsela phansi
F g = amandla adonsela phansi
m B = isisindo somhlaba
R B = irediyasi yomhlaba = 6.37 x 10 6 m
h = ukuphakama kwezinto ngaphezu komhlaba
Uma sifuna ukubala amandla ensimu yamandla adonsela phansi e- iplanethi, isisindo, kanye nerediyasi yomhlaba (mB no-RB) zithathelwa indawo yisisindo kanye nerediyasi yenyanga noma isisindo kanye nerediyasi yeplanethi ethile.
Uma sibheka ukunyakaza kokuwa okukhululekile kwento engaphezu komhlaba, khona-ke kubhekwa njengokusheshisa komhlaba okudonswa yiyo into, okungu-9.8 m/s 2 . Uma into isengaphezu komhlaba (izinto aziwi ngokukhululeka), khona-ke u-g ubonakala njengamandla ensimu yomhlaba adonswa yiyo into, okungu-9.8 N/kg.
