A spring has an original length of 12 cm. When a 50g load is hung on it, its length becomes 15 cm. What will the extension of the spring be if a 100g load is used?
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Worked Solution
Step 1: Extension for 50g = 15cm - 12cm = 3cm.
Step [2-9]: 100g is double the load of 50g.
Step [2-9]: Therefore, extension = 3cm x 2 = 6cm.
Correct answer: 6 cm
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