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Mechanical Engineering QUESTION #2552
Question 1
A rigid body is acted on by exactly three non-parallel coplanar forces. For equilibrium, these forces MUST be:
  • Equal in magnitude and mutually perpendicular
  • Concurrent at a single point✔️
  • Uniformly distributed
  • Acting along the body's axes of symmetry
Correct Answer Explanation
The three-force body theorem states: if a rigid body is in equilibrium under exactly three forces that are not all parallel, those forces must be concurrent (meeting at a single point).