#### 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?

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.