Gogayya ta kinetic ita ce ƙarfin gogayya da ke aiki a saman abubuwan da ke hulɗa da juna lokacin da abubuwan ke motsi.
Idan kana son tantance ƙarfin gogayya mai motsi, yi amfani da lissafi 1.5 a. Idan kana son tantance ma'aunin gogayya mai motsi, yi amfani da lissafi 1.5 b.
Hoto na 2 ya nuna wani abu da ake jan shi akai-akai don haka abin yana motsawa a gudun da ba ya canzawa. Lokacin da ake motsawa a gudun da ba ya canzawa, girman fk daidai da girman ƙarfin jan (F).
Dokar Farko ta Newton ta bayyana cewa abu yana motsawa a gudun da ba ya canzawa idan jimlar ƙarfin (ƙarfin da ya haifar) ya yi daidai da sifili.
Misalin matsalar.
1. Ana jan tubalin kilogiram 1 da aka sanya a kan wani wuri mai faɗi ta amfani da na'urar auna ƙarfi har sai tubalin ya motsa da sauri akai-akai. Idan girman ƙarfin jan da injin auna ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin shine Newton 1 kuma saurin gudu saboda nauyi shine 10 m/s2, ƙayyade: (a) girman ƙarfin gogayya na motsi (b) ma'aunin gogayya na motsi
Tattaunawa
An sani :
Nauyin tubali (m) = 1 kg
Saurin gudu saboda nauyi (g) = 10 m/s2
Nauyin tubalin (w) = mg = (1 kg)(10 m/s2) = 10 kg m/s2 = 10 Newton
Girman ƙarfin jan (F) = 1 Newton
Jawab :
(a) Babban fk
Idan toshen yana motsawa akai-akai ko yana motsawa a saurin da ba ya canzawa, girman f shinek = girman ƙarfin taurin kai (kwatanta lissafi 1.6)
Don haka girman ƙarfin gogayya na motsi (f)k) = girman ƙarfin taurin kai (F) = 1 Newton
(b) Daidaiton gogayya ta motsi
