Resposta :
Seria: F=m.a Então: 100-75= 25, forças horizontais.
F=m.a
25= (2,5) a
a= 25/2,5
a=10m/s^2
F=m.a
25= (2,5) a
a= 25/2,5
a=10m/s^2
[tex]\Large\displaystyle\text{$\begin{gathered} \boxed{\boxed{\bf{ a= 10~m/s^2}} } \end{gathered}$}[/tex]
- Explicação:
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ F_R=m\cdot a } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{F_1-F_2=m\cdot a } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ 100-75=2,5a } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ 25=2,5a } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ 2,5a=25 } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ a=\frac{25}{2,5} } \end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered} \sf{ a=10~m/s^2 } \end{gathered}$}[/tex]