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formulari tecnologia industrial

Principis de màquines$$\sum \vec F_x = 0 \; \sum \vec F_y = 0 \; \sum \vec M_z = 0$$ $$M_{O} = F · d \quad \Gamma= F· D$$ $$W = F · s · \cos \alpha \quad E_m = E_c +E_p$$ $$E_c = \frac{1}{2}mv^2 \quad E_p = mgh \quad P = \frac{W}{\Delta T}$$ $$F =