vectors

Related Questions

• The resultant of two vectors $\overrightarrow P $ and $\overrightarrow Q $ is $\overrightarrow R .$ If Q is doubled, the new resultant is perpendicular to P. Then R equals

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• The angle made by the vector $A = \hat i + \hat j$ with x- axis is

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• When three forces of 50 N, 30 N and 15 N act on a body, then the body is

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• If a vector $2\hat i + 3\hat j + 8\hat k$is perpendicular to the vector $4\hat j - 4\hat i + \alpha \hat k$. Then the value of $\alpha $ is

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

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