- #1
DPXJube
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Homework Statement
A roller coaster starts at rest from a height of 110m and accelerates down the track to a height of 10.0 m. Find the speed it can each, assuming there is no friction
Homework Equations
Eg = mgh
v = sqrt(2Ek/m)
The Attempt at a Solution
Honestly I'm not sure where to begin when given no mass.