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Aakash

· started a discussion

· 1 Months ago

Your answer is incorrect (Question: 158204.0 )

In question you have given that he turn to 45 degree clockwise and walk 5 km. But in figure you have taken, he turn 45 degree clockwise and walk 5 root 2 km. Some thing is wrong here.Question should be something like this, he turn 45 degree clockwise and traveled same as horizontal 5 km toward east.

Question:
Birju walks 8 km towards North, then takes a turn of 450 in clockwise direction and walks 5\(\sqrt{2}\) km. Then he takes another a turn of 450 in anticlockwise direction and walks 8 km and then turns East and walks 10 km. Finally, he turns right and walks 13 km. How far and in which direction is he from the starting point?
Options:
A) 17 km, North-east
B) 17 km, South-east
C) 20 km, South-east 
D) 20 km, North-east
Solution:
Ans: (a)

The movement of Birju is as follows:


= OP =\(\sqrt[]{8^2+(10+5)^2} \ \ \ \ = \ \ \sqrt[]{289}\)  = 17 km in  the north-east directions.

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