Advanced Science Primary 6 Interactions

Two identical springs, each with an original length of 10 cm, are used to hang a 200g weight in parallel. If one spring extends by 4 cm for a 100g weight, what is the new length of the springs in this setup?

A 12 cm
B 18 cm
C 14 cm
D 20 cm
Show Worked Solution

Worked Solution

Step 1: In parallel, the weight is shared equally between the two springs. Step [2-9]: Each spring carries 100g (200g / 2). Step [2-9]: Extension for 100g is 4 cm. New length = 10 cm + 4 cm = 14 cm.

Correct answer: 14 cm

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