vectors

Related Questions

• If $|\vec A \times \vec B| = \sqrt 3 \vec A.\vec B,$ then the value of$|\vec A + \vec B|$ is

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• Two forces, each of magnitude F have a resultant of the same magnitude F. The angle between the two forces is

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• With respect to a rectangular cartesian coordinate system, three vectors are expressed as $\vec a = 4\hat i - \hat j$, $\vec b = - 3\hat i + 2\hat j$ and $\vec c = - \hat k$ where $\hat i,\,\hat j,\,\hat k$ are unit vectors, along the X, Y and Z-axis respectively. The unit vectors $\hat r$along the direction of sum of these vector is

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• The vector projection of a vector $3\hat i + 4\hat k$on y-axis is

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• Two equal forces (P each) act at a point inclined to each other at an angle of 120°. The magnitude of their resultant is

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