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A roller coaster reaches the top of the steepest hill with a speed of 6.8 km/h...

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Physics

A roller coaster reaches the top of the steepest hill with aspeed of 6.8 km/h . It then descends the hill, which is at anaverage angle of 35 ∘ and is 45.0 m long.

Q: What will its speed be when it reaches the bottom? Assumeμk = 0.18.

Answer & Explanation Solved by verified expert
4.1 Ratings (676 Votes)
Gravitational acceleration g 981 ms2Mass of the roller coaster mSpeed of the roller coaster at the top V1 68kmhr 68 x 10003600 ms 1889 msAngle of incline    See Answer
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