# A person moves 30 m north, then 20 m east then 30 root2 m south west. His displacement from the origin position is
[ans-10 m west]

### Asked by Anil | 6th Jun, 2017, 01:25: PM

Expert Answer:

### For the solutions which involves movement at a particular direction, there are some assumptions which are required to be understood.
- Whenever there is a change in direction like North/South to East/West, the angle made due to the change in path is 90
^{o} .
- When there is a change in direction of the path like East to Southwest or West to Northeast,the angle made due to the change in path is 45
^{o} .

Now solving the path made due to change in direction using the geometry of the path and applying laws of vectors on it we come to the following solution.

- Whenever there is a change in direction like North/South to East/West, the angle made due to the change in path is 90
^{o}. - When there is a change in direction of the path like East to Southwest or West to Northeast,the angle made due to the change in path is 45
^{o}.

Now solving the path made due to change in direction using the geometry of the path and applying laws of vectors on it we come to the following solution.

### Answered by Abhijeet Mishra | 6th Jun, 2017, 05:36: PM

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