You have to move your 100 N couch before a delivery company drops off your new one. Unfortunately your roommate is passed out on it. The coefficient of friction between the couch and floor is .43. It takes 250 N of force to get the couch moving. How much does your roommate weigh in Newton's? ? 107.50N Not enough information ? 481.40N ? 581.40N
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This force overcomes the static friction between the couch and the floor. The static friction force is given by $F_s = \mu_s N$, where $\mu_s$ is the coefficient of static friction and N is the normal force. Show more…
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You have to move your 100 N couch before a delivery company drops off your new one. Unfortunately your roommate is passed out on it. The coefficient of friction between the couch and floor is .43. it takes 250 N of force to get the couch moving. a) how much does your roommate weigh in newtons? b) after you get the couch moving it only takes 200N to keep it moving at a constant speed, what is the coefficient of kinetic energy
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