Official Answer
Answer
Impeta zigumana impeta zikorwa mugukata insinga ziringaniye, bivuze ko zidafite inkingi ya 'kashe' hamwe na burr nkuruziga. Ariko, 'iherezo' ryinsinga aho yaciwe irashobora kugira burr nkeya. Mu kirere cyuzuye neza, ni ngombwa ko iyi mpande yaciwe idahura nibice byimuka. Ikigeretse kuri ibyo, mugihe impeta iringaniye, inzira yo gutondeka irashobora kwinjiza 'isahani.' Mugihe cyo guterana, impeta igomba kwerekezwa kugirango uruhande rwa convex rurebe umutwaro, rufasha kurwanya ingaruka 'kuroba' munsi. Mubidukikije bihindagurika cyane, ikinyuranyo cyimpeta ya spiral kigomba kwerekezwa $ 180 ^ \ kuzenguruka $ kure yikibanza cyambere cyo kunyeganyega kugirango hagabanuke ingaruka zimpeta 'kugenda' cyangwa kuzunguruka muri ruhago.
