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1. T A 250 kg roller coaster passes point A at 12.0 m/s. v = 12.0 m/s 18.0 m B What is the speed of

1. T A 250 kg roller coaster passes point A at 12.0 m/s. v = 12.0 m/s 18.0 m B What is the speed of the roller coaster at point B at the bottom of the hill if 8 500 J of energy is transformed to heat during the journey? (7 marks)

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