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Answer to Question #72024 in Other Physics for Chelsey Maher

Question #72024
An ore car of mass 41000 kg starts from rest
and rolls downhill on tracks from a mine. At
the end of the tracks, 20 m lower vertically, is
a horizontally situated spring with constant
4.2 × 105 N/m.
The acceleration of gravity is 9.8 m/s2 .
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