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Unformatted text preview: E initial = E final + W nonconserved Work = F fr • d Force and distance are along same direction, so W=Fd 1 2 mv o = F fr d Use Ffr=ukN, and summing forces in y direction: Nmg=0 N=mg Solve for d: d = v o 2 2 μ k g METHOD 2 Sum forces in x: " F fr = ma gives a = " k g Use the equations for constant acceleration: v f 2 = v o 2 + 2 ad where vf =0 gives same result as above for d...
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 Spring '08
 Lanzara
 Physics, Conservation Of Energy, Energy, Force, Friction, Kinetic Energy, Potential Energy, WorkKinetic Energy Theorem, LANZARA Final Exam

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