A super high-speed 14-car Italian train has a mass of640
Chapter 4, Problem 4.79(choose chapter or problem)
A super high-speed 14-car Italian train has a mass of640 metric tons (640,000 kg). It can exert a maximum force of400 kN horizontally against the tracks, whereas at maximumconstant velocity (300 km/h), it exerts a force of about 150 kN.Calculate (a) its maximum acceleration, and (b) estimate theforce of friction and air resistance at top speed.
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