vectors

Related Questions

• If the sum of two unit vectors is a unit vector, then magnitude of difference is

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• The position vector of a particle is determined by the expression $\vec r = 3{t^2}\hat i + 4{t^2}\hat j + 7\hat k$. The distance traversed in first 10 sec is

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• If $\overrightarrow A = 2\hat i + 4\hat j - 5\hat k$ the direction of cosines of the vector $\overrightarrow A $ are

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• The linear velocity of a rotating body is given by $\overrightarrow v = \overrightarrow \omega \times \overrightarrow r ,$where $\overrightarrow \omega $ is the angular velocity and $\overrightarrow r $ is the radius vector. The angular velocity of a body is $\overrightarrow \omega = \hat i - 2\hat j + 2\hat k$ and the radius vector $\overrightarrow r = 4\hat j - 3\hat k,$ then $|\overrightarrow v |$ is

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• If $\mathop A\limits^ \to \, \times \,\mathop B\limits^ \to \, = \,\mathop B\limits^ \to \, \times \,\mathop A\limits^ \to $ then the angle between A and B is

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