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OpenStudy (anonymous):
A roller coaster car is loaded with passengers and has a mass of 500 kg along with a speed of 18 meters/second at the dip. The radius of curvature of the track at the bottom point of the dip is 12 meters (gravity = 9.8 meters/second2). What force is exerted on the roller coaster car by the track at the bottom of the dip? A.1.6 × 104 newtons B.1.8 × 104 newtons C.0.5 × 104 newtons D.1.0 × 104 newtons E.8.6 × 103 newtons
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