Physics - NLM Question with Solution | TestHub

An object of mass m is kept on a rough inclined surface $\left({\mu }_{\mathrm{S}}={\mu }_{\mathrm{k}}\right)$. If angle of inclination is gradually increased, the net contact force ${\mathrm{F}}_{\mathrm{c}}$ offered by surface on the object vary with incline angle $\theta$, as shown in the graph. $\left(\mathrm{g}=10\mathrm{m}/{\mathrm{s}}^2\right)$