Question: Consider a train that rounds a curve with a radius of 570 m at a speed of 160 km / h (approximately 100 mi /

Consider a train that rounds a curve with a radius of 570 m at a speed of 160 km / h (approximately 100 mi / h).

(a) Calculate the friction force needed on a train passenger of mass 55 kg if the track is not banked and the train does not tilt.

(b) Calculate the friction force on the passenger if the train tilts at an angle of 8.0° toward the center of the curve.

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