<prompt> Ubani owacabanga ukuthi amandla adonsela phansi ayinto engekho? Njengoba kunikezwe umbuzo odlule, bhala umongo onempendulo yawo. Kungaba imisho engu-1 kuya kwengu-20. Umongo:  <response>: Lokho manje esikubiza ngokuthi amandla adonsela phansi akuzange kutholakale njengamandla asemhlabeni wonke kwaze kwaba umsebenzi kaIsaac Newton. Ngaphambi kukaNewton, ukuthambekela kokuba izinto ziwele phansi emhlabeni kwakungaqondwa njengokuhlobene nokunyakaza kwezinto zasezulwini. UGalileo waba neqhaza elikhulu ekuchazeni izici zezinto eziwayo ngokubona ukuthi ukusheshisa kwento ngayinye eyehlayo kwakungaguquguquki futhi kungenzi lutho ngobuningi bento. Namuhla, lokhu kusheshisa ngenxa yamandla adonsela phansi kuya ebusweni bomhlaba kuvame ukubizwa ngokuthi futhi kunobukhulu obungamamitha ayi-9.81 ngomzuzwana owodwa lokhu kukalwa kuthathwa ezingeni lolwandle futhi kungahluka ngokuya ngendawo, futhi kukhomba enkabeni yoMhlaba. Lokhu kuqaphela kusho ukuthi amandla adonsela phansi entweni esemkhathini womhlaba ahambisana ngqo nobuningi bento. Ngakho-ke into enobuningi bayo ihlangabezana namandla: 