A roller coaster reaches the top of the steepest
Chapter 5, Problem 5.78(choose chapter or problem)
A roller coaster reaches the top of the steepest hill with aspeed of 6.0 km/h. It then descends the hill, which is at anaverage angle of 45 and is 45.0 m long. What will itsspeed be when it reaches the bottom? Assume = 0.12.
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