The moment about a point p(0, 0, 0) of the force F= 21-j-k applied at Q(1, 1,
FIA Past Papers / All — Multiple-choice practice
- A. 3j-3k
- B. 3i-3j
- C. None of these
- D. 3j+3j
Correct answer
3j-3k
Explanation
Explanation 3j-3k A pair consists of two equally opposite forces acting on two different but parallel lines of action. T he moment of force depends on the distance from the fulcrum and the magnitude of the force , but the moment of the pair is the net effect of the two moments of force.
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