Calculating Moment of Force in Free Body Diagram

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SUMMARY

The calculation of the moment of force in a free body diagram is determined using the formula Moment of Force = (Force) * (Perpendicular Distance). This equation applies specifically to scalar problems. To achieve equilibrium, it is essential to compute the moment for each force acting on the free body diagram, requiring both the magnitude of each force and its perpendicular distance from a designated point, such as point A. The discussion emphasizes the importance of understanding these components for accurate calculations.

PREREQUISITES
  • Understanding of free body diagrams
  • Knowledge of scalar and vector quantities
  • Familiarity with the concept of equilibrium in physics
  • Basic grasp of force and distance measurements
NEXT STEPS
  • Study the principles of torque and rotational dynamics
  • Learn about equilibrium conditions in static systems
  • Explore advanced applications of moment calculations in engineering
  • Review examples of free body diagrams in physics textbooks
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Students in physics, engineering professionals, and anyone involved in mechanics or structural analysis will benefit from this discussion.

TheEngineer89
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1. See following attatchment

2. Moment of force= (force)*(perpendicular distance) only for scalar problems.



3. Well i know that moments are a cause of roation among a certain point
and when computing equilibrium we have to calculate the moment for every force
on the free body diagram.
we need the magnitude of every force as well as the perpendicular distance from each force to point A. as shown in the problem. but i cannot seem to figure out what equation (s) I need. all i need is a little guidence not the answer. thank you
 

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Welcome to PF!

Hi TheEngineer89! Welcome to PF! :wink:
TheEngineer89 said:
Moment of force= (force)*(perpendicular distance) only for scalar problems.

(What do yo mean by "only for scalar problems" ? :confused:)

This formula should give you the answers for this diagram …

what is worrying you about it? :smile:​
 

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