A spring has an original length of 12 cm. When a 50 g weight is hung on it, the total length becomes 15 cm. What will be the total length if another 50 g weight is added?
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Worked Solution
Step 1: Calculate extension for 50 g: 15 cm - 12 cm = 3 cm.
Step [2-9]: Adding another 50 g (total 100 g) results in a total extension of 3 cm + 3 cm = 6 cm.
Step [2-9]: Total length = 12 cm + 6 cm = 18 cm.
Correct answer: 18 cm
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