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Girl Walks 4 Km Towards West, Then She Walks 3 Km in a Direction 30° East of North and Stops. Determine the Girl’S Displacement from Her Initial Point of Departure. - CBSE (Science) Class 12 - Mathematics

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Question

 girl walks 4 km towards west, then she walks 3 km in a direction 30° east of north and stops. Determine the girl’s displacement from her initial point of departure.

Solution

Let O and B be the initial and final positions of the girl respectively.

Then, the girl’s position can be shown as:

  Is there an error in this question or solution?

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Solution Girl Walks 4 Km Towards West, Then She Walks 3 Km in a Direction 30° East of North and Stops. Determine the Girl’S Displacement from Her Initial Point of Departure. Concept: Addition of Vectors.
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