Ib qho khoom txav mus rau qhov tsis zoo muaj qhov nrawm nrawm. Yog hais tias tus kwv yog ceev, ces nws acceleration vector yog qhia nyob rau hauv tib txoj kev raws li nws cov lus tsa suab (nyob rau hauv cov ntaub ntawv no, ib tug tsis zoo acceleration).
Vim li cas thiaj tsis muaj qhov tsis zoo?
Neegative velocity xwb txhais tau hais tias ceev nyob rau hauv lub opposite direction tshaj qhov yuav zoo. Los ntawm kev pom lej, koj tsis tuaj yeem muaj "qhov tsis zoo tshaj tawm" hauv nws tus kheej, tsuas yog "qhov tsis zoo tshaj tawm hauv ib qho kev qhia " . Qhov nrawm yog 3-dimension vector, tsis muaj qhov zoo lossis tsis zoo 3D vector.
Koj puas muaj qhov tsis zoo lossis nrawm?
Kev nrawm yeej tsis muaj qhov tsis zoo; nws yeej ib txwm yuav zoo. Koj speedometer ntawm lub tsheb nyeem qhov deb; txawm tias koj tab tom taug kev rov qab los, qhov nrawm tseem zoo. Ceev yog qhov kev ncua deb them rau ib chav tsev ntawm lub sij hawm. Kev nrawm yog tus nqi uas hloov txoj haujlwm (lossis hloov chaw).
Puas nrawm dhau los tsis zoo?
Speed yog ib tug scalar kom muaj nuj nqis uas txhais tau hais tias nws muaj tsuas magnitude, whereas tshaj tawm yog ib vector kom muaj nuj nqis uas txhais tau hais tias nws muaj ob qho tib si magnitude thiab kev taw qhia. … Txij li thaum, peb paub ceev tsis muaj kev taw qhia yog li ntawd, nrawm tsis tuaj yeem tsis zoo.
Yuav ua li cas ceev ntawm ib yam khoom puas tsis zoo?
Teb tiav:
Nws tuaj yeem yog xoom tab sis nws tsis tuaj yeem tsis zoo, thiab lub sijhawm kuj tsis tuaj yeem xoom lossis tsis zoo. Yog li, qhov ceev yog qhov piv ntawm ob qhov ntau uas tsis yog qhov tsis zoo. Yog li qhov ceev ntawm lub cev tsis tuaj yeem ua qhov tsis zoo hauv ib qho xwm txheej.
