An Ore Car of Mass 4 900 Kg Rolls Downhill

question 60

Multiple Choice

An ore car of mass 4 900 kg rolls downhill on tracks from a mine.At the end of the tracks,13.5 m lower in elevation,is a spring with k = 410 000 N/m.How much is the spring compressed in stopping the ore car? Ignore friction.

• A)1.26 m
• B)0.889 m
• C)1.78 m
• D)0.568 m
• E)0.484 m

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