A spring stretches by 2 cm for every 10 g weight added. If the original length of the spring is 10 cm, what is its total length when a 30 g weight is hung on it?
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Worked Solution
Step 1: Calculate total extension: (30g / 10g) * 2cm = 6cm.
Step [2-9]: Add to original length: 10cm + 6cm = 16cm.
Correct answer: 16 cm
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