Recent content by Poppy38

I've been thinking this for 3 days and at last i got it here. thanks so much :)

So, is it going to have a 5J kinetic energy and swing for a time ?

The weight was at 1m high in pic.1 Then you connect it with the spring and release, it stays in equilibrium like pic.2

I am calculating the energy transfer in two different formulas and they are giving different results. What could be the reason of this difference? I would be grateful if someone tell me what i am missing here. http://s18.postimg.org/o4tknn77d/potential.jpg