2025 PHS PRELIMS P1 Q8

2025 PHS PRELIMS P1 Q8

Secondary 4
2 marks

The force \(F\) between two particles is inversely proportional to the square of their separation. The force is 64 units when the distance is \(r\) metres. Find the force when the distance is reduced by 20%.[2]

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Answer:\(100\)

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