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3. A skateboarder slides down a frictionless ramp inclined at an
angle of 30° to the horizontal. He then slides across a frictionless
horizontal floor and begins to slide up a second incline at an angle
of 25° to the horizontal. The skateboarder starts at a distance of
10 m from the bottom of the first incline. How far up the second
incline will he go if the coefficient of kinetic friction on the second
incline is 0.10?

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