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OpenStudy (anonymous):
In the 1950s, an experimental train, which had a mass of 2.50X10^4 kg, was powered across a level track by a jet engine that produced a thrust of 5.00X10^5 N for a distance of 509m. Find the final speed of the train if there had been no fricion.
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OpenStudy (noelgreco):
F=ma \[(v _{f})^{2}=v _{i}^{2}+2ad\]
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