Asked by Janice

So I did in an experiment and the results I got were the potential energy when the spring compresses is 0 and when it stretches is 1.42. This spring is vertical and has a 250 gram spring attached to it. I was very confused when i got these results because I thought the potential energy is higher when a spring compresses and when it stretches the potential energy turns into Kinetic energy.
Answered by Janice
Im sorry i meant it has a 250 g weight
Answered by Janice
Anyone!!
Answered by bobpursley
The PE is maximum when the spring is compressed or stretched. KE develops when the spring is moving.

KE+ PE= constant.

So, at the neutral point, where PE is zero, that is where KE is maximum, ie, it is moving fastest at that point.
Answered by bobpursley
http://www.youtube.com/watch?v=sTsUx-6CflI
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