Official Answer
Answer
Kuroba bibaho mugihe umutwaro wa axial $ P $ utera impeta guhindagurika muburyo bumwe. Ibi bibaho kubera ko umutwaro usanzwe ushyirwa mugihe kiri kure yinkunga ya groove, ukarema umwanya wo kugunama $ M = P · e $, aho $ e $ aribwo buryo bwihariye. Impeta irwanya kuroba nigikorwa cyurukuta rwayo rwa radiyo $ b $ nubugari $ t $. Gutandukana ntarengwa mbere yuko impeta 'igenda' hanze ya ruhago ni ngombwa. Kuroba byongerewe na radiyo nini ku gice cyagumishijwe. Kugabanya kuroba, abashushanya bagomba kwemeza ko igice cyagumishijwe gifite inguni ya kare cyangwa bagakoresha icyuma cyo kugabura kugirango bagabanye umutwaro uringaniye hejuru yimpeta.
