Find the moment N- of the force F- relative to the point O-

The correct option is A N⃗=(aB bA)k⃗ Moment N⃗ is calculated r⃗×F⃗ a amp; b A amp; B solving this determinant we get N⃗=( ...

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Standard XII

Chemistry

Boyle's Law

Find the mome...

Question

Find the moment $\to N$ of the force $\to F$ relative to the point $O$ .

\to N = (a B + b A) \to k

, where

\to k

is the unit vector of the z axis.

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\to N = (b B + a A) \to k

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\to N = (a B - b A) \to k

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\to N = (b B - a A) \to k

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Solution

The correct option is A $\to N = (a B - b A) \to k$
Moment $\to N$ is calculated $\to r \times \to F$
$∣ ∣ ∣ \begin{matrix} a & b A & B \end{matrix} ∣ ∣ ∣$
solving this determinant we get-
$\to N = (a B - b A) \to k$

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Similar questions

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Find the moment →N of the force →F relative to the point O.

The correct option is A →N=(aB−bA)→kMoment →N is calculated →r×→F ∣∣∣abAB∣∣∣solving this determinant we get-→N=(aB−bA)→k

Find the moment $\to N$ of the force $\to F$ relative to the point $O$ .

The correct option is A $\to N = (a B - b A) \to k$
Moment $\to N$ is calculated $\to r \times \to F$
$∣ ∣ ∣ \begin{matrix} a & b A & B \end{matrix} ∣ ∣ ∣$
solving this determinant we get-
$\to N = (a B - b A) \to k$