The mass of a roller-coaster car including its passengers, Ask an Expert

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Q1. The mass of a roller-coaster car, including its passengers, is 495kg. Its speed at the bottom of the track in the figure below is 17.00 m/s. The radius of this section of track is r1 = 26 m. Find the force that a seat in the roller-coaster car exerts on a 47 kg passenger at the lowest point.

Q2. The weight of passengers on a roller coaster increases by 53 as the car goes through a dip with the 34 radius of curvature. What is the car's speed at the bottom of the dip?

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