Question: 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

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 45o and is 45.0m long. Estimate its speed when it reaches the bottom. Assume μk = 0.18.

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See the freebody diagram for the descending roller coaster It starts its descent with v 60 kmh 1m... View full answer

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