Question: In Figure a block slides along a path that is without friction until the block reaches the section of length L = 0.75m, which begins

In Figure a block slides along a path that is without friction until the block reaches the section of length L = 0.75m, which begins at height h = 2.0m on a ramp of angle θ = 30^o. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A?

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