Answer is 5.52m/s^{2}. How do i get this answer please
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Solutionm=12 \mathrm{~kg}, F=100 \mathrm{~N}, \mu_{s}=0.3, g=9.81 \mathrm{~m} / \mathrm{s}^{2}prawing frae body diagram :-where friction fore =f=\mu_{s}\left(m g-F \sin 30^{\circ}\right)\Rightarrow f=0.3\left(12 \times 9.81-100 \sin 30^{\circ}\right)Applying Dalemberts theorem in horizontal direction\begin{array}{l}\Rightarrow \quad m a=F \cos 30^{\circ}-f \\\Rightarrow \quad a=\frac{F \cos 30^{\circ}-f}{m}=\frac{100 \cos 30^{\circ}-[0.3(12 \times 9.81-50)]}{12} \\\Rightarrow \quad a=5.52 \frac{\mathrm{m}}{\mathrm{s}^{2}}\end{array} ...