目录
- $$\begin{cases} \boldsymbol{T}=\boldsymbol{M}g\ T\cos\langle 0,\frac{\pi}{3}\rangle=\boldsymbol{f} \ \boldsymbol{N}+\boldsymbol{T}\sin\langle 0,\frac{\pi}{3}\rangle=\boldsymbol{M}g \ \end{cases}$$ 可得$$\begin{cases} G=Mg=500N\ T=100N\ f=50N N=413.4N \ \end{cases}$$
- $$\begin{cases} f=\mu M \ F_{push}=50N\ F_{push\ x}=\cos37^{\circ}F_{push}\ \ \end{cases}$$