okay, there is a roller coaster with 2 hills.. this is what I know:(adsbygoogle = window.adsbygoogle || []).push({});

1st hill height: 40m

2nd hill height: 25m

mass of coaster: 500kg

I was asked to find out the PE at top of hill #1, I did that and got 196,000J

Now I have to findthe KE at the bottom of hill #1, as well as finding the velocity at various spots, how do I do this?

Thanks a LOT for the help in advance.

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# Homework Help: Conservation of energy help

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