what is position vector ?
A vector which gives the position of a particle at a point with respect to the origin of chosen co-ordinate system is colled position vector.
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A position vector is defined as a vector that symbolizes either the position or the location of any given point with respect to any arbitrary reference point like the origin. The direction of the position vector always points from the origin of that vector towards a given point.
The position vector of an object is measured from the origin, in general. Suppose an object is placed in the space as shown:
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The position vector r extends from the origin to the particle,while the velocity vector v points in the direction of the particle's motion....The position r and the velocity v of a moving particle of mass m.The point 0 denotes the origin, and r0 denotes the distance between the line of motion and the origin.
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