Gogewa ƙarfi ne da ke hana motsi na abu. Wannan ƙarfin yana aiki tsakanin saman da ke haɗuwa. A cikin wannan batu, gogayya da aka yi nazari a kai ta shafi ƙarfin da ke aiki tsakanin saman da ke haɗuwa guda biyu, kamar gogayya tsakanin tushen tubali da bene, gogayya tsakanin tafin takalma da bene, ko gogayya tsakanin ƙafafun mota da hanya.
Rikici koyaushe yana aiki akan saman abubuwa masu ƙarfi waɗanda ke taɓa juna, koda kuwa abubuwan suna da santsi sosai. Ko da saman abu mai santsi sosai a zahiri yana da ƙarfi sosai akan sikelin ƙananan ƙwayoyin cuta . Lokacin da abu ya motsa, waɗannan ƙananan ƙwayoyin cuta suna wargaza motsi. A matakin atom, kumburi a kan saman yana sa atom ɗin ya kasance kusa da wani saman, don haka ƙarfin lantarki tsakanin atom ɗin na iya samar da haɗin sinadarai, azaman haɗin kai tsakanin saman abu biyu na abin da ke motsi. Lokacin da abu ya motsa, misali lokacin da ka tura littafi akan saman tebur, motsin littafin yana fuskantar juriya kuma a ƙarshe ya tsaya. Wannan ya faru ne saboda samuwar da sakin waɗannan haɗin.
Idan saman wani abu ya shafa a saman wani, kowane abu yana yin ƙarfin gogayya a kan ɗayan. Gogayya a kan wani abu mai motsi koyaushe yana aiki a akasin alkiblar motsin abin. Bayan hana motsin abin, gogayya na iya haifar da lalacewa da lalacewa. Za mu iya lura da wannan a cikin injunan abin hawa. Misali, lokacin da muka shafa wa injin babur, a zahiri muna son rage gogayya a cikin injin. Idan ba mu shafa masa mai ba, injin zai lalace da sauri. Wannan misali yana ɗaya daga cikin rashin amfanin gogayya da gogayya ke haifarwa.
Nau'ikan Ƙarfin Gogewa
Akwai nau'ikan gogayya guda biyu: tsayayye (f s ) da kuma motsi (f k ). Gogayya mai tsayi yana aiki lokacin da abu yana ci gaba da motsi, yayin da gogayya mai tsayi yana aiki lokacin da abu yake motsi. Idan ka tura tebur amma har yanzu yana motsi, ƙarfin da ke aiki akan teburin da babu motsi shine gogayya mai tsayi. Akasin haka, lokacin da teburin ke motsi, ƙarfin da ke aiki akan teburin gogayya mai tsayi shine gogayya mai tsayi. Idan ba a tura teburin da ke motsawa akai-akai ba, zai tsaya bayan wani lokaci. Teburin yana tsayawa saboda ƙarfin motsi wanda ke hana motsi.
Shin ka taɓa zamewa a kan wani abu mai santsi? Idan ka zame, ƙarfin da ke tsakanin tafin takalminka ko sandal ɗinka da kuma saman mai santsi shine gogayya ta kinetic. Wannan yayi kama da lokacin da babur ko mota ke tafiya a kan hanya mai danshi da santsi aka birkice har sai ƙafafun sun zame. Lokacin da ƙafafun suka zame, ƙarfin da ke aiki a saman ƙafafun da hanya gogayya ce ta kinetic. Akasin haka, lokacin da kake tafiya, ƙarfin da ke aiki tsakanin tafin takalminka ko sandal ɗinka da ƙasa gogayya ce ta kinetic. Haka kuma, lokacin da ƙafafun ba sa zamewa, ƙarfin gogayya da ke aiki a saman ƙafafun da hanya gogayya ce ta kinetic.
