10_InstSolManual_PDF_Part11

10_InstSolManual_PDF_Part11 - Dynamics of Rotational Motion...

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Solve: since the child is at gives Reflect: When some of the mass moves farther from the axis, the moment of inertia increases and the angular veloc- ity decreases. 10.34. Set Up: Solve: gives 10.35. Set Up: An object is in translational equilibrium if the net force is zero. An object is in rotational equilibrium about an axis if the net torque about that axis is zero. Solve: (a) Only rotational equilibrium. (b) Neither. (c) Only translational equilibrium. (d) Only translational equi- librium. (e) Both. 10.36. Set Up: An object is in rotational equilibrium about an axis if An object is in translational equilibrium if Solve: (a) if so Not in translational equilibrium. (b) if so Not in translational equilibrium. (c) if so Not in translational equilibrium. (d) if so Not in translational equilibrium. (e) if so Not in translational equilibrium. 10.37. Set Up: The force diagram for the leg is given in Figure 10.37. The weight of each piece acts at the center of mass of that piece. The mass of the upper leg is
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This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.

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