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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• If $A = 3\hat i + 4\hat j$ and $B = 7\hat i + 24\hat j,$the vector having the same magnitude as B and parallel to A is

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• If a unit vector is represented by $0.5\hat i + 0.8\hat j + c\hat k$, then the value of ‘c’ is

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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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• While travelling from one station to another, a car travels 75 km North, 60 km North-east and 20 km East. The minimum distance between the two stations is

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