The acceleration of the box, a =3 m/s²
Explanations:Mass of the box, m = 150 kg
The force applied to the right, F = 900 N
[tex]\text{Frictional force, F}_r=\text{ 450N}[/tex][tex]\begin{gathered} \sum ^{}_{}f\text{ = ma} \\ F-F_r=\text{ ma} \end{gathered}[/tex][tex]\begin{gathered} 900\text{ - 450 = 150a} \\ 150a\text{ = 450} \\ a\text{ = }\frac{450}{150} \\ a=3m/s^2 \end{gathered}[/tex]The acceleration of the box, a =3 m/s²
