8. Sand pouring from a lorry (figure) forms a conical pile whose height is always equal to the diameter. If the height increases at a constant rate of 5 ft/min, at what rate is sand pouring from the lorry when the pile is 10 ft high?

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A: Use the derivative and substitute the given values.

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A: Topic:-  basic maths  Note :- as per our guideline if more than three subparts need to be answered…

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A: I am going to solve the given problem by using some simple calculus to get the required result.

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A: Note: As per our company guidelines we are supposed to answer the first question only. Kindly ask…

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Q: 2. The radius of a sphere decreases at the rate of 5 m/sec. Find the rate at which the volume…

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Q: 5. A trough is 6m long and its ends have the shape of isosceles triangles that are 1m across at the…

A: The solution is given below in the next step:

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A: step by step clear explanation is given .Have a look

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Q: 19. Water is leaking out of an inverted conical tank at a rate of 10,000 cm³/min at the same time…

A: I am attaching image so that you understand each and every step.

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A: This question is based on the application of derivative.

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