# An object, previously at rest, slides 5 m down a ramp, with an incline of pi/8 , and then slides

###### Question:

An object, previously at rest, slides 5 m down a ramp, with an incline of pi/8 , and then slides horizontally on the floor for another 4 m. If the ramp and floor are made of the same material, what is the material's kinetic friction coefficient?

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