https://www.abitur.by/fizika/zadachi-po-fizike/dvizhenie-tela-po-okruzhnosti-zadachi/opredelit-uglovuyu-skorost-s-kotoroj-ravnomerno-vrashhaetsya-velosipednoe-koleso-esli-za-promezhutok-vremeni-ono-delaet-tret-oborota/