• 2021-04-14
    图中,F=5kN且过A点垂直于xy平面。该力对x轴和y轴的矩分别为:=_ __________ _; = __________ _。/ananas/latex/p/665689/ananas/latex/p/6656909b94a196c72fb15e887eace63dc377a1.png