PhysOct3

7 k3 findtheforcetoget theboxmoving

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Unformatted text preview: n uses µkinetic – The force it takes to keep it going at a constant velocity Mass=32 kg Mass=32 kg µs = .7 µk = .3 Find the force to get the box moving. Find the force to keep the box moving at a constant velocity. A 700 kg polar bear A 700 kg polar bear slides across the ice with a force of friction of 25 N. What is the coefficient of friction between fur and ice? A 25 kg boy slides A 25 kg boy slides along a slip­n­slide. He slows down with an acceleration of .5 m/s2. What is µk between the slide and the boy? A group of people pull a 200,000 kg A group of people pull a 200,000 kg plane with a force of 40,000 N to keep it moving at a constant velocity. What is the kinetic force of friction? What is the coefficient of kinetic friction of the tires on the tarmack? Synthesis Synthesis I own/I don’t Out: Draw a free body diagram of your friction block in constant velocity....
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