Physics - NLM Question with Solution | TestHub

the value of the angle $\beta$ that minimizes the force T is given by $\beta ={\tan }^{-1}{\mu }_{\mathrm{s}}$

the value of the angle $\beta$ that minimizes the force T is given by $\beta ={\cot }^{-1}{\mu }_{\mathrm{s}}$

the minimum value of T in terms of $\alpha ,{\mu }_{\mathrm{s}},\mathrm{m}$ and g is given by $\mathrm{T}=\mathrm{mg}\frac{\left({\mu }_{\mathrm{s}}\cos \alpha -\sin \alpha \right)}{\sqrt{1+{\mu }_{\mathrm{s}}^2}}$

the minimum value of T in terms of $\alpha ,{\mu }_{\mathrm{s}},\mathrm{m}$ and g is given by $\mathrm{T}=\mathrm{mg}\frac{\left({\mu }_{\mathrm{s}}\sin \alpha +\cos \alpha \right)}{\sqrt{1+{\mu }_{\mathrm{s}}^2}}$