HW 9 Tips - HW 9 Tips; PHY 131 Sect. 10, 11, 15; Fall 2010...

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1 HW 9 Tips; PHY 131 Sect. 10, 11, 15; Fall 2010 Prof. Pascuzzi HW 9 covers the basics of Equilibrium from Chapter 12 Information you may need; Equilibrium is a situation in which acceleration does not occur (i.e. that is static or dynamic equilibrium). The conditions for this are; NOTE: This Chapter (12) is filled with tons of excellent statics/torque questions so practice as many as you can and check your answers in the back of the book (for odd numbered problems). Equilibrium/Statics Problem-Solving Tips; 1) Sketch the FBD and focus on the forces that can cause torques (i.e. rotation). 2) Apply in both x and y directions (you may or may not need this to solve for unknowns in the question). You should get one large equation after this. 3) Look carefully at the problem and decided where the axis of rotation is, or simply choose an appropriate axis of rotation (label it A ). Since you have so many variables, it is wise to choose A at a place where one of the forces will give zero torque (see examples here).
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This note was uploaded on 06/12/2011 for the course PHY 131 taught by Professor Rijssenbeek during the Fall '03 term at SUNY Stony Brook.

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HW 9 Tips - HW 9 Tips; PHY 131 Sect. 10, 11, 15; Fall 2010...

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