We set a mass of 3 kg on an incline table, initially horizontal. There is significant friction between both surfaces. The inclination angle is increased to 25 degrees, at which point the mass moves down the table with constant acceleration. Find the static coefficient of friction. If we then lower the inclination, we observe a constant speed at 20 degrees. 

Find the kinetic coefficient of friction.

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To find the static coefficient of friction we need to consider the forces acting on the block on the ... View the full answer