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Easy Physics dat i dont understand

 
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Jun3-10, 04:23 AM   #1
 

Easy Physics dat i dont understand

1. The problem statement, all variables and given/known data
a 1 ton rollercoaster falls froma top of 100m ramp. how high above the ground is it when it is travelling at 20m/s. assume no friction

I DONT NO HOW TO START OR WHERE TO START FROM!! PLZ HELP
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Jun3-10, 04:25 AM   #2
 
Recognitions:
Homework Helper Homework Help
Use conversation of energy. I am quite sure it is covered in your book.
Jun3-10, 04:27 AM   #3
 
ohh yes THANK YOU!! :)
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