Hợp lực của hai lực song song cùng chiều là.
A.$ \left( \begin{array}{l} & {{F}_{1}}+{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{1}}}{{{d}_{2}}} \end{array} \right) $
B.$ \left( \begin{array}{l} & {{F}_{1}}+{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{2}}}{{{d}_{1}}} \end{array} \right) $
C.$ \left( \begin{array}{l} & {{F}_{1}}-{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{2}}}{{{d}_{1}}} \end{array} \right) $
D.$ \left( \begin{array}{l} & {{F}_{1}}-{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{1}}}{{{d}_{2}}} \end{array} \right) $
A.$ \left( \begin{array}{l} & {{F}_{1}}+{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{1}}}{{{d}_{2}}} \end{array} \right) $
B.$ \left( \begin{array}{l} & {{F}_{1}}+{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{2}}}{{{d}_{1}}} \end{array} \right) $
C.$ \left( \begin{array}{l} & {{F}_{1}}-{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{2}}}{{{d}_{1}}} \end{array} \right) $
D.$ \left( \begin{array}{l} & {{F}_{1}}-{{F}_{2}}=F \\ & \dfrac{{{F}_{1}}}{{{F}_{2}}}=\dfrac{{{d}_{1}}}{{{d}_{2}}} \end{array} \right) $
Loga
Hóa Học lớp 12
