A super high-speed 12-car Italian train has a mass of 660
Chapter 4, Problem 82(choose chapter or problem)
A super high-speed 12-car Italian train has a mass of 660 metric tons (660.000 kg). It can exert a maximum force of 400 kN horizontally against the tracks, whereas at maximum velocity (300 km/h), it exerts a force of about 150 kN. Calculate (a) its maximum acceleration, and (b) estimate the force of air resistance at top speed.
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