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A rollercoaster reaches the top of the steepest hill with a speed of 6.0 km/h. It then descends the hill, which is at an averag...Asked by Emily
A roller coaster reaches the top of the steepest hill with a speed of 7.0 km/h . It then descends the hill, which is at an average angle of 44 ∘ and is 30.0 m long.
Estimate its speed when it reaches the bottom. Assume μk=0.18.
Estimate its speed when it reaches the bottom. Assume μk=0.18.
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