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MMLU-Pro / 9073 / A string of freight cars weighs 200 tons. The coefficient of rolling friction is…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A string of freight cars weighs 200 tons. The coefficient of rolling friction is 0.005. How fast can a freight engine of 400 hp pull the string of cars along?

category

physics

options

  1. 100 mi/hr
  2. 75 mi/hr
  3. 40 mi/hr
  4. 110 mi/hr
  5. 65 mi/hr
  6. 50 mi/hr
  7. 95 mi/hr
  8. 85 mi/hr
  9. 90 mi/hr
  10. 60 mi/hr

src

stemez-Physics

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