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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 hatj`

C

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

D

None of these

Text Solution

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The correct Answer is:
A
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