Rufangu rutondapakati (Centripetal Acceleration) inodudzirwa serufangu runodikanwa kuti mutumbi urambe uchipoterera mudenderedzwa uri panhambwe yakatarwa nenhara. Pano paNyika nhara yacho yakasakamara paAkiso panomonereka Nyika uye rufangu rutondapakati rwakatondeka divi rimwechetero rakasakamara paAkiso. Zvimwechetezvo zvinoonekwa pamitumbi inofamba panyika ichinge yakadarika spidhi inotenderwa nerufangu rutondapakati rwepahukwidza pairi.