Q.1
Which of the following statement is true about Lami’s theorem
  • Theorem is only applicable to regular shaped bodies in equilibrium
  • Theorem is derived based on the cosine rule of trigonometry
  • Theorem determines the forces acting on a moving body
  • Theorem is helpful in determining the unknown forces acting at a point for an object in equilibrium
Q.2
According to Lami’s theorem:
  • The three forces must be equal
  • The three forces must be at 120° to each other
  • The three forces must be in equilibrium
  • If the three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two
  • None of these
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