A sofa of weight 150 lb. rests on the floor. A horizontal force of 50 lb. is the smallest force that can make the sofa slide. (Assume ?static=?dynamic) a) What is the static friction coefficient between the sofa and the floor? b) What would be the acceleration of that sofa if pushed by a horizontal force of 60 lb?
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Given: Weight of sofa (W) = 150 lb Horizontal force (F) = 50 lb Using the formula for static friction: F = μs * N where N is the normal force and is equal to the weight of the sofa (150 lb). Substitute the values: 50 lb = μs * 150 lb Solve for μs: μs = 50 lb Show more…
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