A spring has an original length of 15 cm. When a 100g weight is hung on it, its length becomes 18 cm. What is the extension for every 100g?
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Worked Solution
Step 1: Identify original length (15 cm).
Step [2-9]: Identify new length (18 cm).
Step [2-9]: Extension = New Length - Original Length = 18 - 15 = 3 cm.
Correct answer: 3 cm
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