Solved: A roller coaster reaches the top of the steepest
Chapter 4, Problem 54(choose chapter or problem)
A roller coaster reaches the top of the steepest hill with a speed of 6.0 km/h. It then descends the hill, which is at an average angle of 45 and is 45.0 m long. Estimate its speed when it reaches the bottom. Assume /iik = 0.18.
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