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A road running north to south acrosses a...

A road running north to south acrosses a road going east to west at the point P. Car A is driving north along the first road, and car B is driving east along the second road . At a particular time car A 10 kilometers to the north of P and traveling at `80 km//hr`, while car B is 15 Kilometers to the east of P and traveling at `100 km//hr` . How fast is the distance between the two cars changing ?

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The correct Answer is:
`=(460)/(sqrt13)``127.6 km//hr` at the time of intersect.
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FULL MARKS-APPLICATIONS OF DIFFERENTIAL CALCULUS -ADDITIONAL QUESTIONS SOLVED
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