PHYS
10_InstSolManual_PDF_Part26

# 10_InstSolManual_PDF_Part26 - 10-26 Chapter 10 10.69 Set Up...

• Notes
• 1

This preview shows page 1. Sign up to view the full content.

10.69. Set Up: The free-body diagram for the drawbridge is given in Figure 10.69. For an axis at the lower end, Figure 10.69 Solve: (a) gives and (b) depends on the angle the bridge makes with the horizontal. is not constant during the motion and cannot be used. (c) Use conservation of energy. Take at the lower end of the drawbridge, so and gives and Reflect: If we incorrectly assume that is constant and has the value calculated in part (a), then gives The angular acceleration increases as the bridge rotates and the actual angular velocity is larger than this. 10.70. Set Up: The free-body diagram for the leg is given in Figure 10.70a. Let the pivot be at the hip joint and take counterclockwise torques to be positive. There is a force of unknown magnitude and direction that the hip joint exerts on the leg, but this force produces zero torque. Figure 10.70 Solve: (a) gives and (b) The free-body diagram for the pulley attached to the foot is sketched in Figure 10.70b.
This is the end of the preview. Sign up to access the rest of the document.
• Spring '07
• Shoberg
• Trigraph, free-body diagram

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern