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3. Block A in the sketch has a mass of 20 kg and is attached to the wall by means of a cord at an

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3. Block A in the sketch has a mass of 20 kg and is attached to the wall by means of a cord at an angle of 60" with the vertical, while block B has a mass of 40 kg. The coefficient of static friction 60" between A and B is 0.2, while the coefficient of A HA static friction between B and the floor is 0.3. P Determine the minimum force P required to cause B Block B to slide (i.e. Motion impending). Ha

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