Question: 18. A roller coaster carrying a small dog is shown in the diagram. Assume an initial speed of 4.5 m/s at point A and

18. A roller coaster carrying a small dog is shown in the diagram. Assume an initial speed of 4.5 m/s at point A and a total mass of 25 kg. a. Calculate the Total Energy as Point A. (3 marks) b. Calculate the speed at point B. (3 marks) 20 m B h = ? D 12 m

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