Nivedita stops after going 10 km towards west from her office. then she goes 8 km turning to her left. after this she goes 4 km turning to her left. how far is she from her office?
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i think answer of this question is 10 km
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Nivedita is 11.312 Km away from her office
1) The first direction of motion is west 10 km.
2) Then she turns left, i.e. She is facing south now . Distance = 8 km
3) Then she again turns left i.e. She is facing east now. Distance moved is 4 km.
4) Let the starting point be A and then the following points are B,C,D.
5) Her total distance from her office would be AD
i.e.√( 8² + 8²) = √128 = 8√2 = 11.312 Km
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