O-LevelPhysicsForces5054/12 · May/June 2020 · Q131 Mark
An unstretched elastic cord of length 15.0 cm stretches by 4.0 cm when a weight of 6.0 N is suspended from it. The cord does not exceed the limit of proportionality. What is the total length of the cord when the weight is 3.0 N?
A2.0 cm
B7.5 cm
C9.5 cm
D17.0 cm
✓ Correct answer
D: 17.0 cm
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