Physics

Which among the following is a vector quantity?

  1. work
  2. power
  3. energy
  4. moment of couple

Force

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Answer

moment of couple

Reason — A couple has both magnitude and direction, making it a vector quantity. Its direction is perpendicular to the plane in which the two forces lie. The magnitude is calculated by multiplying one of the forces with the perpendicular distance between their lines of action.

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