lOMoAR cPSD| 61371432
SOLUTION MANUAL FOR SHIGLEY'S MECHANICAL
ENGINEERING DESIGN IN SI UNITS 11TH EDITION BY
BUDYNAS 2025-2026 VERIFIED STUDY GUARANTEED
PASS
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Chapter 1
Problems 1-1 through 1-4 are for student research.
1-5 Impending motion to left
Consider force F at G, reactions at B and D. Extend lines of action for fully-developed fric-
tion DE and BE to find the point of concurrency at E for impending motion to the left. The
critical angle is θcr. Resolve force F into components Facc and Fcr. Facc is related to mass and
acceleration. Pin accelerates to left for any angle 0 < θ < θcr. When θ > θcr, no magnitude of F
will move the pin.
Consider force F ′ at G, reactions at A and C. Extend lines of action for fully-developed fric-
tion AE ′ and CE ′ to find the point of concurrency at E ′ for impending motion to the left. The
critical angle is θc′r. Resolve force F ′ into components Fa′ cc and Fc′r. Fa′cc is related to mass and
acceleration. Pin accelerates to right for any angle 0 < θ′ < θc′r. When θ′ > θc′r, no mag- nitude
of F ′ will move the pin.
The intent of the question is to get the student to draw and understand the free body in order
to recognize what it teaches. The graphic approach accomplishes this quickly. It is im- portant
to point out that this understanding enables a mathematical model to be constructed, and that
there are two of them.
This is the simplest problem in mechanical engineering. Using it is a good way to begin a
course.
What is the role of pin diameter d?
Yes, changing the sense of F changes the response.
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Downloaded by Brian kiarie ()
SOLUTION MANUAL FOR SHIGLEY'S MECHANICAL
ENGINEERING DESIGN IN SI UNITS 11TH EDITION BY
BUDYNAS 2025-2026 VERIFIED STUDY GUARANTEED
PASS
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Chapter 1
Problems 1-1 through 1-4 are for student research.
1-5 Impending motion to left
Consider force F at G, reactions at B and D. Extend lines of action for fully-developed fric-
tion DE and BE to find the point of concurrency at E for impending motion to the left. The
critical angle is θcr. Resolve force F into components Facc and Fcr. Facc is related to mass and
acceleration. Pin accelerates to left for any angle 0 < θ < θcr. When θ > θcr, no magnitude of F
will move the pin.
Consider force F ′ at G, reactions at A and C. Extend lines of action for fully-developed fric-
tion AE ′ and CE ′ to find the point of concurrency at E ′ for impending motion to the left. The
critical angle is θc′r. Resolve force F ′ into components Fa′ cc and Fc′r. Fa′cc is related to mass and
acceleration. Pin accelerates to right for any angle 0 < θ′ < θc′r. When θ′ > θc′r, no mag- nitude
of F ′ will move the pin.
The intent of the question is to get the student to draw and understand the free body in order
to recognize what it teaches. The graphic approach accomplishes this quickly. It is im- portant
to point out that this understanding enables a mathematical model to be constructed, and that
there are two of them.
This is the simplest problem in mechanical engineering. Using it is a good way to begin a
course.
What is the role of pin diameter d?
Yes, changing the sense of F changes the response.
Downloaded by Brian kiarie ()
, lOMoAR cPSD| 61371432
Downloaded by Brian kiarie ()
