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A roller coaster is towed up an incline at a steady speed of 0.50 m/s by a chain parallel to the surface of the incline. The slope is 3.0 %, which means that the elevation increases by 3.0 m for every 100 m of horizontal distance. The mass of the roller coaster is 400 kg. Neglecting friction, what is the magnitude of the force exerted on the roller coaster by the chain

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