Multiple Choice
A boxcar of mass 125 tons at rest becomes uncoupled on a 2.0° grade.If the track is considered to be frictionless,what speed does the boxcar have after 9.0 seconds?
A) 4.0 m/s
B) 0.038 m/s
C) 31 m/s
D) 3.1 m/s
E) 0.31 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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