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An aerplane at an altitude of 400 metres...

An aerplane at an altitude of 400 metres, flying horizontally with a speed of `250 m//sec,` passes directly the observer, it is approaching him at the rate of

A

`100 m//sec`.

B

`200m//sec`

C

`300m //sec`.

D

`150 m//sec`.

Text Solution

Verified by Experts

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