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Question
A vector is not changed if
Options
it is rotated through an arbitrary angle
it is multiplied by an arbitrary scalar
it is cross multiplied by a unit vector
it is slid parallel to itself.
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Solution
it is slid parallel to itself.
A vector is defined by its magnitude and direction. If we slide it to a parallel position to itself, then none of the given parameters, which define the vector, will change.
Let the magnitude of a displacement vector ( \[\vec{A}\] ) directed towards the north be 5 metres. If we slide it parallel to itself, then the direction and magnitude will not change.
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