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.
  1. Whenever there is a change in direction like North/South to East/West, the angle made due to the change in path is 90o .
  2. 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 45o . 

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