Posted by **Jen** on Monday, July 12, 2010 at 10:24pm.

an unstretched hanging spring is 50cm long. suspending a 100N weight from it makes its lenght 60cm. Adding another 100N weight will make the spring --

60cm, 70 cm, 80 cm, 100 cm, or 120 cm.

No idea how they came up with any of the five ??? My answer was different!

Please help!

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