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A girl walks 4 km towards west then she ...

A girl walks 4 km towards west then she walks 3 km in a direction `30^@` east of north and stops then the girl's displacement from her initial point of departures is

A

`-5/2 hati+(3sqrt3)/2 hatj`

B

`1/(2) hati+sqrt3/2 hati`

C

`-1/(2) hati+(3sqrt3)/2 hatj`

D

none of the above

Text Solution

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The correct Answer is:
A
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