Q:
      
      
         
            
Lami's theorem is applicable only for
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) Coplanar and concurrent forces         
         
Explanation: The Lami's theorem states that " If three forces coplanar and concurrent forces acting on a particle keep it in equilibrium, then each force is proportional to the sine of the angle between the other two and the constant of proportionality is the same." This theorem is derived from the Sine rule of triangles.
       
      
      
      
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