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with Solved Example Problems - Position Vector | 11th Physics : Kinematics

Chapter: 11th Physics : Kinematics

Position Vector

It is a vector which denotes the position of a particle at any instant of time, with respect to some reference frame or coordinate system.

POSITION VECTOR

It is a vector which denotes the position of a particle at any instant of time, with respect to some reference frame or coordinate system.

The position vector  of the particle at a point P is given by




Solved Example Problems for Position Vector


EXAMPLE 2.13

Determine the position vectors for the following particles which are located at points P, Q, R, S.



Example 2.14

A person initially at rest starts to walk 2 m towards north, then 1 m towards east, then 5 m towards south and then 3 m towards west. What is the position vector of the person at the end of the trip?

Solution

As shown in the Figure, the positive x axis is taken as east direction, positive y direction is taken as north.


After the trip, the person reaches the point P whose position vector given by


The displacement direction is south west.



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11th Physics : Kinematics : Position Vector | with Solved Example Problems


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