Official Answer
Answer
Kuroba bibaho mugihe impeta ihindagurika muburyo bwa conical munsi yumutwaro muremure bitewe nigihe ukuboko kuremye hagati yumutwaro wo kwishyiriraho hamwe na groove. Ihinduka ridafite gahunda ritera guhinduka kuva kumurongo umwe uhuza umurongo uhuza umurongo kuruhande. Guhuza imibonano $ \ sigma_c $ byiyongera cyane: $ \ sigma_c = \ sqrt {\ frac {P \ cdot E} {2 \ pi R (1- \ nu ^ 2)}} $. Iyi mihangayiko ihanitse irashobora kurenza umusaruro ugabanya ibikoresho bya groove, byihuta 'kuzunguruka'. Ba injeniyeri bagabanya kuroba bahitamo impeta ndende cyangwa bakoresheje 'impeta-yinyuma' iboneza ryimpeta kugirango bongere umwanya mwiza wa inertia $ I = \ frac {b t ^ 3} {12} $ kurwanya kunama.
