The 8 kg disk has an angular velocity of w 20 rad/s. If the brake ABC is applied such that the magnitude of force P varies with time as shown, determine the time needed to stop the disk. The coefficient of kinetic friction at B is μ _k = 0.5. Neglect the thickness of the brake. 

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500 mm 500 mm 200 mm P(N) 400 m +(s) 500 mm 500 mm 200 mm P(N) 400 m +(s)

Answer rating: 100% (QA)

Equations of Equlibrium Since slipping occurs at BFrict... View the full answer