A ship A is moving Westwards with a speed of 10 kmph and a ship B 100 km South of A, is moving Northwards with a speed of 10 kmph. The time after which the distance between them becomes the shortest is:

 

  Question:  From NCERT  | NEET PYQ 2015   || [Difficult level:Medium]  |Motion In A Plane| 

A ship A is moving Westwards with a speed of 10 kmph and a ship B 100 km South of A, is moving Northwards with a speed of 10 kmph. The time after which the distance between them becomes the shortest is:
1. 0 h
2. 5 h
3. $5\sqrt{2}$h
4. $10\sqrt{\mathrm{2h}}$

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: 4. 

$10\sqrt{\mathrm{2h}}$

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NCERT REFERENCE

CLASS 11 | Physics |CHAPTER 4 | Motion In A Plane

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