vectors

Related Questions

• 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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• A particle moves from position $3\hat i + 2\hat j - 6\hat k$ to $14\hat i + 13\hat j + 9\hat k$ due to a uniform force of $(4\hat i + \hat j + 3\hat k)\,N.$ If the displacement in meters then work done will be

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

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• The position of a particle is given by $\overrightarrow r = (\overrightarrow i + 2\overrightarrow j - \overrightarrow k )$ momentum $\overrightarrow P = (3\overrightarrow i + 4\overrightarrow j - 2\overrightarrow k ).$The angular momentum is perpendicular to

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• If $|{\overrightarrow V _1} + {\overrightarrow V _2}|\, = \,|{\overrightarrow V _1} - {\overrightarrow V _2}|$and ${V_2}$ is finite, then

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