A spring extends by 4 cm when a 20g load is hung on it. If the load is increased to 50g, what will the TOTAL extension of the spring be?
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Worked Solution
Step 1: Extension per gram = 4cm / 20g = 0.2 cm/g.
Step [2-9]: Extension for 50g = 50g x 0.2 cm/g = 10 cm.
Step [2-9]: Therefore, the total extension is 10 cm.
Correct answer: 10 cm
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