vectors-m

Related Questions

• A force of magnitude 6 acts along the vector $(9,\,6,\,-2)$ and passes through a point A (4, – 1, –7). The moment of the force about the point O (1, – 3, 2) is

  ---

• The unit vector perpendicular to $3\mathbf{i}+2\mathbf{j}-\mathbf{k}$ and $12\mathbf{i}+5\mathbf{j}-5\mathbf{k},$ is

  ---

• If the angle between the vectors a and b be $\theta$ and $\mathbf{a}\,.\,\mathbf{b}=\cos \theta ,$ then the true statement is

  ---

• If the angle between a and b be ${{30}^{o}}$, then the angle between 3 a and – 4 b will be

  ---

• A force $\mathbf{F}=2\mathbf{i}+\mathbf{j}-\mathbf{k}$ acts at a point A, whose position vector is $2\mathbf{i}-\mathbf{j}$. The moment of F about the origin is

  ---