Q23 of 43 Page 85

A person moves 30 m north and then 20 m east and finally 30√2 m south-west. What is the displacement from the original position?

First we define directions:

West to East is x-axis


South to North is y-axis


Now, we draw the path of a person



Now,





(Because x and y both are negative)


Total Displacement =


=


=


Total displacement is 10 m towards the west


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