Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Rangarira mufananidzo wesimba uri kurudyi, umo kutsauka kwacho kwawedzeredzwa zvikuru. Kuongorora kwacho kwakarerutswa nokufunga nezvokukwezva kuri kudivi rimwe chete regomo racho. Pumb-bob rine huremu m riri kure d kubva paP, nzvimbo ine huremu yegomo rine huremu MM uye density ρM. Inotsauswa kuburikidza nekona duku θ nemhaka yokukwezva kwayo F kune P uye uremu hwayo W yakanangidzirwa kuPasi. Kuwanda kwevector yeW naF kunoguma nokumanikidzwa T mumutsetse wependuru. Pasi rine huremu hweME, nharaunda rE uye density ρE.  Mubvunzo: chii chakarangarirwa mukuongorora?
chinhu chinokwezva chiri kudivi rimwe chete regomo