Question

A couple of 15 N acts on a rigid body, such that the arm of couple is 85 cm, calculate the moment of couple in SI system ?

Answer 1

Dear Student,

$$\begin{gathered} \mathrm{Torque},\mathrm{\tau }=15\mathrm{N} \\ \mathrm{arm}\mathrm{of}\mathrm{couple}=85\mathrm{cm}=0.85\mathrm{m} \\ \mathrm{Moment}\mathrm{of}\mathrm{couple}=\mathrm{\tau }\times \mathrm{arm}\mathrm{of}\mathrm{couple} \\ \mathrm{Moment}\mathrm{of}\mathrm{couple}=15\times 0.85=12.75\mathrm{Nm} \end{gathered}$$