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A blind person after walking each 10 ste...

A blind person after walking each 10 steps in one direction, each of length 80 cm, turns randomly the left or to right by `90^@`. After walking a total of 40 steps the maximum possible displacement the person from his starting position could be (A) 320 m (B) 32 m (C) `16/sqrt2` m (D) `16sqrt2` m

A

320 m

B

32 m

C

`16//sqrt(2)m`

D

`16sqrt(2)m`

Text Solution

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The correct Answer is:
D
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MOTION-VECTOR -Exercise - 1
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  14. The vector sum of two force P and Q is minimum when the angle theta be...

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  15. The vector sum of two vectors vecA and vecB is maximum , then the angl...

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  16. if vecP +vecQ = vecP -vecQ , then

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  17. The sum and difference of two perpendicular vectors of equal length ar...

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  18. A child pulls a box with a force of 200 N at an angle of 60^(@) above ...

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