A spring has an original length of 12 cm. When a 200g load is hung on it, its length becomes 16 cm. What will the total length of the spring be when a 500g load is hung on it?
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Worked Solution
Step 1: Extension for 200g = 16 - 12 = 4 cm. Step 2: Extension for 100g = 2 cm. Step 3: Extension for 500g = 5 x 2 = 10 cm. Step 4: Total length = 12 + 10 = 22 cm.
Correct answer: 22 cm
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