A spring has an original length of 10 cm. When a 100g weight is hung on it, its length becomes 12 cm. What will be its total length if a 200g weight is hung on it?
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Worked Solution
Step 1: Original length = 10 cm.
Step 2: Extension for 100g = 12 cm - 10 cm = 2 cm.
Step 3: Extension for 200g = 2 cm × 2 = 4 cm.
Step 4: Total length = Original length + Extension = 10 cm + 4 cm = 14 cm.
Correct answer: 14 cm
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