2025 AISS PRELIMS P1 Q2

2025 AISS PRELIMS P1 Q2

Secondary 4
5 marks
2025 Ahmad Ibrahim Secondary School Prelims A Math Paper 1

Baking powder is poured onto a flat surface at a constant rate of \(2\pi\ \text{cm}^3\text{s}^{-1}\) and formed a right circular cone. The radius of the cone is always \(\frac{1}{18}\) of its height. Find the rate of change of the radius of the cone after 3 seconds of pouring.[5]

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Answer:\(\frac{1}{9}\text{ cm s}^{-1}\)

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