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A cone has a fixed radius r and a variab...

A cone has a fixed radius r and a variable height h. Find the rate of change of its curved surface S w.r.t change in the radius.

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PRADEEP PUBLICATION-APPLICATIONS OF DERIVATIVES-EXERCISE
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  2. An edge of a variable cube is increasing at the rate of 3 cm second. H...

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  3. A cone has a fixed radius r and a variable height h. Find the rate of ...

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  4. A right-circular cone has a fixed radius r and a variable height h. Fi...

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  5. A solid right circular cylinder has its radius equal to half of its he...

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  6. From a cylindrical drum containing oil and kept vertical, the oil leak...

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  7. Two men A and B start with velocities v at the same time from the junc...

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  8. A kite is moving horizontally at a height of 141.5 m. If the speed of ...

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  9. For what x, sinx increases half as fast as x?

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  10. A particle moves along the curve 6y = x^3+2. Find the points on the cu...

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  11. A man 160 cm tall, walks away from a source of light situated at the t...

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  14. Water is leaking from a conical funnel at a uniform rate of 4 cm^3//se...

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  16. Find the marginal cost and the marginal revenue when x = 10 , the tota...

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  17. The total cost C(x) in Rupees, associated with the production of x uni...

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  18. The radius of a cylinder is increasing at the rate of 2m/sec and its h...

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