The moment vector of the force p =[1, -2, 3]about Q (1, -2, 1) acting on a line through A:(2, 1, 0) is O A. [7,4,-5] о в. [7, - 4, -5] Ос. [7, - 4, 1] O D. None of these

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A: We will use the fact that x is orthogonal to u and v to prove that x is orthogonal to u+v also

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A: The explanation of answer as follows

Q: Pls help ASAP

A: It is vector problem

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Q: The moment vector of the force p = [1, -2, 3] about Q (1, -2, 1) acting on a line through A:(2, 1,…

A: Thanks for the question :)And your upvote will be really appreciable ;)

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A: Please see the below picture for detailed solution.

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Q: The moment vector of the force p=[1, -2, 3]about Q (1, -2, 1) acting on a line through A (2, 1, 0)…

A: