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09-04-2024
Physics

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In the figure here, a small block is sent through point A with a speed of 6.1 m/s. Its path is without friction until it reaches the section length L = 13 m, where the coefficient of kinetic friction is 0.77. The indicated heights are h1 = 5.5 m and h2 = 2.9 m. What are the speeds of the block at (a) point B and (b) point C? (c) Does the block reach point D? (d) If so, what is its speed there; if not, how far through the section of friction does it travel?

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