Ƙarfin gogayya mai tsauri shine ƙarfin gogayya da ke aiki akan saman abubuwan da ke hulɗa da juna lokacin da abubuwan ba sa motsi.
Hoto na 1 ya nuna wani abu da yake tsaye a kan wani wuri mai faɗi wanda ƙarfin F ke ja. Idan abin ba ya motsi to fs ya fi ƙarfin ja (F) ƙanƙanta. Idan ƙarfin ja ya ƙaru to abin zai motsa. Lokacin da abin ya kusa motsawa, girman fs ya yi daidai da girman ƙarfin ja (F).
Dokar Farko ta Newton ta bayyana cewa abu yana hutawa idan ƙarfin da aka samu ko jimlar ƙarfin ya yi daidai da sifili.
Idan kana son tantance ma'aunin gogayya mai tsauri, yi amfani da lissafi 1.1 b
Lokacin da abin zai yi motsi, girmansa zai ragu matsakaicin ƙarfin gogayya mara motsi daidai da girman ƙarfin turawa ko ja.
Misalin matsalar.
1. Ana jan tubalin kilogiram 1 da aka sanya a kan wani wuri mai faɗi ta amfani da na'urar auna ƙarfi (kayan aiki don auna ƙarfi). Lokacin da tubalin zai yi motsi, na'urar auna ƙarfin tana karanta Newtons 2. Saurin gudu saboda nauyi = 10 m/s2Kayyade (a) girman ƙarfin gogayya (b) ma'aunin gogayya
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
Ƙarfin taurin kai (F) = 2 Newton
Jawab :
(a) Girman ƙarfin gogayya mai motsi (f)s)
Lokacin da tubalin zai yi motsi, girman ƙarfin gogayya mai tsauri = girman ƙarfin tensile (kwatanta lissafi 1.4).
Don haka ƙarfin gogayya mai motsi (f)s) = ƙarfin tensile (F) = 2 Newton
(b) Ma'aunin gogayya mai tsayayye
