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Q30 (CISF/2018) Science & Technology › Basic Science (Physics, Chemistry, Biology)

Consider the following statement :
"When a body is in equilibrium, the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point."
Which one of the following laws is described in the above statement ?

Explanation

The statement provided is the definition of the Law of Moments (also known as the Principle of Moments). It states that for a body in rotational equilibrium, the sum of the clockwise moments about any pivot point is equal to the sum of the anticlockwise moments about that same point.

  • Moment is the turning effect of a force, calculated as Force × Perpendicular distance from the pivot.
  • Law of Motion: Refers to Newton's three laws relating force, mass, and acceleration.
  • Law of Momentum: Usually refers to the Conservation of Momentum, stating that the total momentum of an isolated system remains constant.
  • Law of Magnetism: Relates to the behavior of magnetic poles (like poles repel, unlike poles attract).
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