a particle is moving along the X axes under the influence of(adsbygoogle = window.adsbygoogle || []).push({});

a conservative force with a potential energy.

by this graph :

http://img376.imageshack.us/img376/5609/82453845uw5.gif [Broken]

1.describe how the particle moves with E1 energy

where E1>U1

which comes from the left x<-a

and describe how the speed of the particle changes .

here is the solution:

http://img216.imageshack.us/img216/944/46482160yg4.gif [Broken]

can you give explanation to how to get this solution

i know that force is the derivative of potential energy

??

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# Graph explanation question

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