vectors

Related Questions

• The vector $\overrightarrow P = a\hat i + a\hat j + 3\hat k$ and $\overrightarrow Q = a\hat i - 2\hat j - \hat k$ are perpendicular to each other. The positive value of a is

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• A body moves due East with velocity 20 km/hour and then due North with velocity 15 km/hour. The resultant velocity

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• A vector $\overrightarrow A $ points vertically upward and $\overrightarrow B $points towards north. The vector product $\overrightarrow A \times \overrightarrow B $ is

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• When $\vec A.\vec B = - |A||B|,$ then

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• Two forces 3N and 2 N are at an angle $\theta$ such that the resultant is R. The first force is now increased to 6N and the resultant become 2R. The value of $\theta$ is

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