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A man on a wharf 40 metres above the wat...

A man on a wharf 40 metres above the water pulls in a rope, attached to a boat, at the rate of `3 m//sec`. When there is still 50 metres of rope out, the boat is approaching the shore at the rate of

A

`5 m//sec`.

B

`4 m//sec`.

C

`3 m//sec`.

D

`2 m //sec`.

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The correct Answer is:
A
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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