The 151-lb exerciser is beginning to execute some slow, steady bicep curls. As the tension T = 23 Ib. is developed against an exercise machine (not shown), determine the normal reaction forces at the feet A and B. Friction is sufficient to prevent slipping, and the exerciser maintains the position shown with center of gravity at G. Note that there are 4 unknown reaction forces in this FBD. We only have 3 equilibrium equations that can be used to solve for these unknowns, so we cannot solve for all of the forces. The problem only asks us to find the normal forces NA and NB and we can solve for these two forces. We cannot find the friction forces FA and FB. Write one equilibrium equation T 25° C that can be used to find the force NA. Then solve for NA then NB

The 151-lb exerciser is beginning to execute some slow, steady bicep curls. As the tension T = 23 Ib. is developed against an exercise machine (not shown), determine the normal reaction forces at the feet A and B. Friction is sufficient to prevent slipping, and the exerciser maintains the position shown with center of gravity at G. Note that there are 4 unknown reaction forces in this FBD. We only have 3 equilibrium equations that can be used to solve for these unknowns, so we cannot solve for all of the forces. The problem only asks us to find the normal forces NA and NB and we can solve for these two forces. We cannot find the friction forces FA and FB. Write one equilibrium equation T 25° C that can be used to find the force NA. Then solve for NA then NB

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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