Chapter 5B Rotational Equilibrium

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Example 3: (Cont.)<strong>Rotational</strong> <strong>Equilibrium</strong>: or(ccw(ccw)) = (cw(cw)With respect to Axis A:2 m 7 m 3 mA40 N 80 NA40 N 80 NBB2 m 7 m 3 mCCW Torques: Forces B and 40 N.CW Torques:80 N force.Force A is ignored:Neither ccw nor cw
Example 3 (Cont.)First: (ccw(ccw) 1 = B (10 m) 2 = (40 N) (2 m)= 80 NmNext: (cw(cw) 3 = (80 N) (7 m)= 560 Nm2 m 7 m 3 mA40 N 80 NA40 N 80 NBB2 m 7 m 3 m(ccw(ccw)) = (cw(cw)B(10 m) + 80 Nm = 560 NmB = 48.0 N
Page 2 and 3: The Golden GateBridge providesan ex
Page 4 and 5: Translational EquilibriumCar at res
Page 6 and 7: Equilibrium• An object is said to
Page 8 and 9: Statics or Total EquilibriumStatics
Page 10 and 11: Review: Free-body Diagrams• Read
Page 12 and 13: Example 1 (Continued). Find A and B
Page 14 and 15: Example 2. Find tension in ropes A
Page 16 and 17: Total EquilibriumIn general, there
Page 18 and 19: Example 3: Find the forces exerted
Page 22 and 23: Example 3 (Cont.)TranslationalEquil
Page 24 and 25: Reminder on Signs:Absolute valuesap
Page 26 and 27: T30 0Example 4(Cont.)F yF x5 m200 N
Page 28 and 29: Center of GravityThe center of grav
Page 30 and 31: Example 5: Find the center of gravi
Page 32 and 33: Summary: Procedure• Draw free-bod

Chapter 5B Rotational Equilibrium

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