Dokar Newton ta Uku ya bayyana cewa idan abu na 1 ya yi ƙarfi a kan abu na 2 to a lokaci guda abu na 2 ya yi ƙarfi a kan abu na 1. Girman ƙarfin biyu iri ɗaya ne amma alkiblar ƙarfin biyu akasin haka ne. Ɗaya ƙarfi ana kiransa aikin, ɗayan kuma ƙarfin ana kiransa da martani.
Alamar korau tana nuna alkiblar ƙarfin. Aikin F yana da kyau, yayin da amsawar F take da kyau. Wannan yana nuna cewa ƙarfin aikin da amsawa suna cikin alkibla daban-daban.
Dokar Newton ta Biyu
Dokar Newton ta Biyu ya bayyana cewa idan ƙarfin da ke aiki akan abu ba sifili ba ne, abu zai fuskanci hanzari. Girman hanzarin ya yi daidai da girman ƙarfin gaba ɗaya kuma ya yi daidai da nauyin abu. Alkiblar hanzarin iri ɗaya ne da alkiblar ƙarfin gaba ɗaya.
Dokar Farko ta Newton
Dokar Farko ta Newton ya bayyana cewa duk wani abu da yake hutawa zai kasance a hutawa ko ... ko a hutawa ... bermotsi na layi ɗaya zai ci gaba da tafiya a layi madaidaiciya a daidai gwargwado idan jimlar ƙarfin, wanda aka fi sani da ƙarfin da ke aiki akan abu, yayi daidai da sifili. Bayanin lissafi na dokar farko ta Newton:
Ka yi la'akari da wani abu da ke kewaye da kai, kamar teburi, dutse, ko wani abu. Teburin da ke hutawa zai kasance a hutawa sai dai idan an motsa shi ko kuma an sa shi cikin wani ƙarfi na waje, kamar turawa ko ja. Haka yake ga sauran abubuwa da ke hutawa.
Misalan tambayoyi kan dokar Newton ta 2
Misalan Tambayoyi 8 na Dokar Newton ta Biyu
1. Abu mai nauyin kilogiram 1 yana motsawa tare da saurin gudu na mita 5/s akai-akai2Yaya girman ƙarfin da ke motsa abu yake?
Tattaunawa
An sani :
Nauyin abu (m) = 1 kg
Hanzari (a) = 5 m/s2
An tambaya : ƙarfin da ke haifar da motsi da abu
Misalin tambayoyin ƙarfi na yau da kullun
Misalai 9 na Tambayoyin Ƙarfin Al'ada
1. Toshe yana kwance a kan wani wuri mai faɗi. Nauyin toshe (m) = 1 kg, hanzarin nauyi saboda nauyi (g) = 10 m/s2Girma da alkiblar ƙarfin al'ada (N) shine...
Tattaunawa
An sani cewa :
Misali na tambayoyin ƙarfin gogayya
Misalai 6 na Tambayoyin Ƙarfin Juna
1. Toshe mai nauyin kilogiram 1 yana kwance a kan wani wuri mai faɗi. Matsakaicin gogayya mai tsauri shine 0,4 kuma saurin gudu saboda nauyi shine 10 m/s.2. Kayyade (a) girman ƙarfin gogayya mai tsauri (b) mafi ƙarancin ƙarfin gogayya F don toshewar ta fara motsi!
Tattaunawa
An sani :
Misalin tambayoyin nauyi
Misalai 3 na tambayoyin nauyi
1. Abu yana da nauyin kilogiram 1. Idan saurin gudu saboda nauyi = 10 m/s2, Nawa ne nauyin abin?
Tattaunawa
An sani :
Nauyin abu (m) = 1 kg
Saurin gudu saboda nauyi (g) = 10 m/s2
An tambaya Nauyin abu (w)
Jawab :
Misalan tambayoyi kan hanzarta kusurwa da hanzarta tangential
Misalai 4 na tambayoyin hanzarta kusurwa da hanzarta tangential
1. Tayar da ke da radius na santimita 30 tana juyawa tare da saurin kusurwa na 5 rad/s akai-akai2Yaya girman hanzarin tangential na wani wuri wanda yake (a) 10 cm daga gatari (b) 20 cm daga gatari (c) a gefen tayoyin?
Tattaunawa
Tambayoyi Misali na Hanzarta Tsakanin Jijiyoyi
Misalai 7 na tambayoyin hanzari na tsakiya
1. Ana ɗaure dutse a kan igiya sannan a juya shi a kwance har sai dutsen ya juya kusurwar 360°.o a kowace daƙiƙa 1. Idan tsawon igiyar ya kai santimita 20, a ƙayyade girman hanzarin centripetal na abin!
Tattaunawa
An sani :
Gudun kusurwa (ω) = 360o/daki = juyawa 1 / dakika = 6,28 radians/dakika
Tsawon igiya = radius (r) na hanyar da'ira = 20 cm = mita 0,2
An tambaya : hanzarin tsakiya (as)
Misalan tambayoyi kan saurin kusurwa da saurin tangential
Misalan tambayoyi guda 5 game da saurin kusurwa da saurin tangential
1. Ana ɗaure ƙwallon da igiya mai tsawon mita 2 sannan a juya ta a cikin da'ira a kwance har sai ƙwallon ta motsa da saurin kusurwa na radians 10/daƙiƙa. A ƙayyade girman saurin tangational na wani wuri wanda yake (a) mita 0,5 daga axis (b) mita 1 daga axis (c) a gefen tayoyin.
Tattaunawa
An sani :
Tsawon igiya = radius na hanyar da'ira (r) = mita 2
Gudun kusurwa = 10 radians/daƙiƙa
An tambaya : saurin juyawa na wani wuri a (a) r = mita 0,5 (b) r = mita 1 (c) r = mita 2
Jawab :