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is a vector with magnitude , then the unit vector in the direction of is,
(a)
(b)
(c)
(d)

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Important Questions on Scalars and Vectors
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If a unit vector is represented by , then the value of is

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A unit vector in the direction of the negative of the vector is

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If and, the vector having the same magnitude as and parallel to is

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

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A vector is turned without a change in its length through a small angle The value of and are respectively

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A vector of magnitude is rotated through angle . What is the magnitude of the change in the vector?

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The resultant of two vector and is. If the magnitude of is doubled, the new resultant becomes perpendicular to . Then the magnitude of is

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A force vector applied on a mass is represented as and accelerates with. What will be the mass of the body in ?
