Inkqubo ye- ukuwa simahla kunye nokuphoswa nkqo Ziintshukumo ezimbini zasimahla ezime nkqo, ezibonakaliswa ngale ndlela ngokuba nokulandela umkhondo omnye wendlela ongentla ezantsi (kwimeko yokuwa simahla) nangaphantsi ezantsi (kwimeko yokujula nkqo). Babizwa ngokuba bakhululekile ngenxa yokuba bengenawo nawuphi na umkhosi wokungqubana, Oko kukuthi, ngenxa yokuba zithathwa njengesiqhelo, ezenziwa ngaphandle. Ukulula kwezi ntshukumo zimbini, ngenxa yokungabikho kwemikhosi yokuchasana, kubenza babe ngabokuqala ukujoyina izifundo zesayensi yomzimba, eziqhelekileyo kwizikolo eziziisekondari. Kwimithambo enxulunyaniswa nezi ntshukumo zimbini, ubunzima okanye ubunzima abuchaphazeleki, kwaye nenyani yokuba ukungqubana akuqwalaselwanga kuthetha ukuba imo yeselfowuni ephakamayo okanye ewayo ayinamsebenzi.
Isiseko se ukuwa simahla kunye nokuphoswa nkqoKungenxa yokuba bakudidi lomzimba lwentshukumo ye-rectilinear, eyahlukileyo ngokufanayo. Oku kuthetha ukuba, njengoko kuchaziwe, basukela ikhondo elinye, ezingayilandeliyo ngesantya esinye kodwa ngesantya esinye: oku kukhawulezisa kubizwa ubunzima, ubukhulu bomhlaba obumalunga ne-9.8 yeemitha ngomzuzwana, ngomzuzwana ngamnye.
Idityaniswe ngokwezibalo, yi-9.8 M / S.2, kwaye iyacaciswa ukuya kuthi ga kwinqanaba lokuqala, kwisibini ngasinye isantya siyakuba ziimitha ezili-9.8 ngomzuzwana (umlinganiso wesantya) omkhulu.
Ngelixa iifayile ze iipropathi ezibonakalayo zentshukumo zombini ziyafana, zahlukile kwezinye iimpawu. Emva koko umahluko ophambili phakathi kokuwa simahla kunye nokuphosa nkqo:
- Ekwindla okusimahla, umzimba uvumelekile ukuba uwe ngokukhululekileyo ekuphumleni ngaphandle kokuphoswa kulo naliphi na icala, ke isantya sokuqala esilingana no-0 siqwalaselwa.
- Ngompu othe nkqo, kwelinye icala, intshukumo yenziwa ukusuka ezantsi ukuya phezulu ngesantya sokuqala, apho kwindlela yokunyuka intshukumo ilibazisekile kwaye ukukhawulezisa kuya ezantsi, kwaye isantya sinyuka. Isantya seselfowuni siyayeka de sifike kwi-0 kwelona nqanaba liphezulu lohambo, ukusuka apho ukuqala kwentshukumo yokuwa simahla kuqala.
Olu luhlu lulandelayo luya kubandakanya ezinye imizekelo yokuwa simahla nabanye Imizekelo yokudubula ethe nkqo, ukuzilolonga nesisombululo sabo esihambelanayo esenza ukuba baqonde.
- Ibhola iye yawa phantsi kwisakhiwo, ethatha imizuzwana esi-8 ukufikelela emhlabeni. Ikhawuleza kangakanani ibhola xa ibetha emhlabeni? Isigqibo: Inkqubela phambili ekukhawuleziseni i-9.81 M / S.2 imizuzwana esi-8, oko kukuthi, ibetha ngesantya sama-78 M / S.
- Kumsebenzi ongaphambili, yintoni ukuphakama kwesakhiwo? Isigqibo: Ukuphakama kwesakhiwo kubalwa njengesiqingatha sokukhawulezisa, amaxesha esikwere sexesha: kule meko, iya kuba (½ 9.81 M / S2(8S)2. Ukuphakama kwesakhiwo ziimitha ezingama-313.92.
- Into ewela ekuweni simahla kwaye ifikelela kwisantya se-150 M / S. Kuthathe ixesha elingakanani ukuwa? Isigqibo: Ithatha malunga nemizuzwana eli-15.
- Yeyiphi isantya sokugqibela sento ewayo simahla eqala ekuphumleni nasekuweni imizuzwana eli-10? IsigqiboUmqolo: 98.1 M / S.
- Kwenye iplanethi, iselfowuni iphoswa kwaye ithatha imizuzwana engama-20 ukufikelela emhlabeni, apho ifika ngesantya se-4 M / S. Yintoni ukukhawulezisa umxhuzulane kule planethi? Isigqibo: Ukukhawulezisa kukho i-0.2 M / S.2.
- Iprojekhthi isungulwe ngokuthe nkqo phezulu phezulu ngesantya sokuqala sama-25 M / S. Kuthatha ixesha elingakanani ukuya kwindawo yakho yesantya esiphezulu? Isigqibo: Inxalenye ye-25 M / S, kwaye ilahleke i-9.81 mzuzwana ngamnye. Ke ngoko, kuyakuthatha 2.54 imizuzwana ukufikelela emhlabeni.
- Kumsebenzi ongaphambili, yintoni ukuphakama okuhambelana nesona santya siphezulu? IsigqiboUkuphakama kubalwa njengesiqingatha sesantya sokuqala, siphindaphindwe ngexesha. Nantsi i-12.5 M / S 2.54 S = 31.85 yeemitha.
- Ibhola iphoswa phezulu ngesantya sokuqala se-22 M / S. Yintoni ukuphakama kwayo kwimizuzwana emi-2? IsigqiboImilinganiselo: 2.38 M / S.
- Ngaliphi isantya sokuqala ekufuneka utolo ludubule lwaya ngalo phezulu ukuya kufikelela kubude beemitha ezili-110 kwimizuzwana eyi-5.4? Isigqibo: Njengokuba ilahleko isantya, siqala kwesokugqibela kwaye imveliso yexesha kunye nomxhuzulane wongezwa: 110 M / S + 5.4 S 9.81 M / S2 = 162.97 M / S.
- Kuthatha ixesha elingakanani ukuba iselfowuni ephoswe ngaphezulu ngesantya sokuqala esingama-200 M / S ukuze sime ngokupheleleyo? Isigqibo: Ithatha imizuzwana engama-20.39.
