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Vectors and Its Types

ntA girl move...

Question

A girl moves in east direction for 1 Km.She turns south east for 1 km. Then she turns towards south west and walks for 1 km .She again turns east and walks 3 km,What is the angle between her direction of movement during the start point and final point ?

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Solution

Movement of the girl has been described in figure (1). Girl starts her journey from point A, then moves 1 km towards point B. Again by direction signs as explained in figure 2, she moves towards the point C in south east upto 1 km, again towards D in south west for 1 km, again towards E for 3 km in east direction.
So, angle between AB and DE is 0°.

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