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Physics

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A 10-kg wooden box rests on a ramp that is lying flat. The coefficient of static friction is 0.50, and the coefficient of kinetic friction is 0.30. What is the friction force between the box and ramp if
no force horizontal force is applied to the box?
a 20 N horizontal force is applied to the box?
a 60 N horizontal force is applied to the box?

  • Physics - ,

    stupid idiot!!!!

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