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
c
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