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23 Aug 2018
6 marks B29. Gravel is being dumped from a conveyor belt at a rate of 12 m/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 12 meters high? (Hint: The volume of a right circular cone with base radius r and height h is V = trh.]
6 marks B29. Gravel is being dumped from a conveyor belt at a rate of 12 m/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 12 meters high? (Hint: The volume of a right circular cone with base radius r and height h is V = trh.]
Reid WolffLv2
26 Aug 2018
