01_InstSolManual_PDF_Part19

01_InstSolManual_PDF_Part19 - Models Measurements and...

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

View Full Document Right Arrow Icon
1.62. Set Up: Use coordinates for which is east and is north. The vector displacements are: of east; south of east; and east Solve: north of east. The vector addition diagram in Figure 1.62 shows good qualitative agreement with these values. Figure 1.62 1.63. Set Up: Use coordinates having a horizontal axis and an upward axis. Then Solve: and Since and 1.64. Set Up: For parts (a) and (b), draw a vector diagram of the forces on the boulder with the direction along the hillside and the direction in the downward direction and perpendicular to the hillside. For part (c), draw a similar diagram with and (a) (b) (c) The maximum allowable weight is 1.65. Set Up: Referring to the vector diagram in Figure 1.65, the resultant weight of the forearm and the weight, is 132.5 N upward while the biceps’ force, acts at from the axis. The force of the elbow is thus found as Figure 1.65 Solve: The components are: The elbow force is thus and acts at or below the horizontal. Reflect: The force exerted by the elbow is larger that the total weight of the arm and the object it is carrying.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern