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4. Problem-Solving Techniques Solving Statics Problems Static Equilibrium, Elasticity, and Torque > Solving Statics Problems Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics?campaign_content=book_5818_section_88&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=di rect&utm_source=boundless

5. Double-check that it is a static problem -- in other words, that it is a problem with no acceleration (including angular acceleration). Choose a pivot point -- use the location at which you have the most unknowns. Write equations for the sums of torques and forces in the x and y directions. Solve the equations for your unknowns algebraically, and insert numbers to find final answers. Problem-Solving Techniques Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics/textbooks/alternative-to-physics-9th-john-d-cutnell-kenneth-w-johnson-1118129172-9781118129173/static- equilibrium-elasticity-and-torque-9/solving-statics-problems-88/problem-solving-techniques-376- 6250?campaign_content=book_5818_section_88&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=direct&utm_source=boun dless View on Boundless.com Static Equilibrium, Elasticity, and Torque > Solving Statics Problems

6. Free to share, print, make copies and changes. Get yours at www.boundless.com Appendix

7. Key terms moment of inertia A measure of a body's resistance to a change in its angular rotation velocity torque A rotational or twisting effect of a force; (SI unit newton-meter or Nm; imperial unit foot-pound or ft-lb) Free to share, print, make copies and changes. Get yours at www.boundless.com Static Equilibrium, Elasticity, and Torque

8. Free to share, print, make copies and changes. Get yours at www.boundless.com Static Equilibrium, Elasticity, and Torque When solving static problem, you should start with A) choosing a pivot point B) double-checking that a problem involves no acceleration C) writing an equation for the sum of torques D) solving the equation for unknown

9. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Static Equilibrium, Elasticity, and Torque When solving static problem, you should start with A) choosing a pivot point B) double-checking that a problem involves no acceleration C) writing an equation for the sum of torques D) solving the equation for unknown

10. Free to share, print, make copies and changes. Get yours at www.boundless.com Static Equilibrium, Elasticity, and Torque When solving static problem, the last step is to A) double-check that it is a static problem B) insert numbers to find the final answer C) check if the solution is reasonable by examining the magnitude, direction, and units of the answer D) solve the equations for unknowns

11. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Static Equilibrium, Elasticity, and Torque When solving static problem, the last step is to A) double-check that it is a static problem B) insert numbers to find the final answer C) check if the solution is reasonable by examining the magnitude, direction, and units of the answer D) solve the equations for unknowns

12. Free to share, print, make copies and changes. Get yours at www.boundless.com Static Equilibrium, Elasticity, and Torque A static problem is a problem that involves A) no acceleration B) only angular acceleration C) linear acceleration D) all types of acceleration except angular

13. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Static Equilibrium, Elasticity, and Torque A static problem is a problem that involves A) no acceleration B) only angular acceleration C) linear acceleration D) all types of acceleration except angular

14. Attribution Connexions. "Applications of Statics, Including Problem-Solving Strategies." CC BY 3.0 http://cnx.org/content/m42173/latest/?collection=col11406/1.7CC BY 3.0 http://cnx.org/content/m42173/latest/?collection=col11406/1.7 Connexions. "Introduction to Statics and Torque." CC BY 3.0 http://cnx.org/content/m42167/latest/?collection=col11406/1.7CC BY 3.0http://cnx.org/content/m42167/latest/?collection=col11406/1.7 Wiktionary. "moment of inertia." CC BY-SA 3.0 http://en.wiktionary.org/wiki/moment+of+inertiaCC BY-SA 3.0http://en.wiktionary.org/wiki/moment+of+inertia Wiktionary. "torque." CC BY-SA 3.0 http://en.wiktionary.org/wiki/torqueCC BY-SA 3.0http://en.wiktionary.org/wiki/torque Monterey Bay Institute. CC BY-SA http://www.montereyinstitute.org/courses/Introductory%2520Physics%2520I/nroc%2520prototype%2520files/coursestartc.htmlCC BY-SA http://www.montereyinstitute.org/courses/Introductory%2520Physics%2520I/nroc%2520prototype%2520files/coursestartc.html Monterey Bay Institute. CC BY-SA http://www.montereyinstitute.org/courses/Introductory%2520Physics%2520I/nroc%2520prototype%2520files/coursestartc.htmlCC BY-SA http://www.montereyinstitute.org/courses/Introductory%2520Physics%2520I/nroc%2520prototype%2520files/coursestartc.html Free to share, print, make copies and changes. Get yours at www.boundless.com Static Equilibrium, Elasticity, and Torque