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A freight train has a mass of 1.2 107 kg. If the locomotive can exert a constant pull of 6.5 105 N, how long does it take to increase the speed of the train from rest to 60 km/h?

  • physics - ,

    Pull= mass*acceleration

    pull= mass*(Vf/time)
    convert Vf km/hr to m/s, andsolve for time.

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