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A ship is travelling due north at 40 kmp...

A ship is travelling due north at 40 kmph. The captain of the finds that a second ship is always sailing `60^(@)` west of north at a speed of 40 kmph. The velocity of the second ship then must be

A

40 kmph, `30^(@)` west of north

B

40 kmph. `60^(@)` west of south

C

`40sqrt(3)` kmph, `30^(@)` west of north

D

`40sqrt(3)` kmph, `60^(@)` west of south

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The correct Answer is:
C
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