Horizontal force on hinge is affected by moving the block farther away?

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SUMMARY

The discussion centers on the calculation of horizontal forces on a hinge when a block is moved farther away. Participants emphasize the importance of using a free body diagram (FBD) to visualize forces and recommend labeling all forces for clarity. The conversation highlights the need to derive equations based on the net force and net torque being zero, which are crucial for understanding the mechanics involved. The use of symbols, particularly the distance variable ##x##, is also discussed as a key factor in analyzing the horizontal component of the force.

PREREQUISITES
  • Understanding of free body diagrams (FBD)
  • Knowledge of net force and net torque concepts
  • Familiarity with basic trigonometry in physics
  • Ability to manipulate symbolic expressions in physics
NEXT STEPS
  • Learn how to construct and analyze free body diagrams (FBDs)
  • Study the principles of static equilibrium in physics
  • Explore the relationship between distance from a hinge and force components
  • Review torque calculations and their implications in mechanical systems
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Physics students, mechanical engineers, and anyone studying static equilibrium and force analysis in mechanical systems.

hello478
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Homework Statement
The block is now moved closer to end A of the beam. Assume that the beam remains
horizontal.
State whether this change will increase, decrease or have no effect on the horizontal
component of the force exerted on the beam by the hinge.
Relevant Equations
theory questions, i think it uses vectors
1711468139020.png



my attempt: no effect


1711471248171.png
 

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I can't see your attempt.
 
PeroK said:
I can't see your attempt.
done!
 
Presumably you have already found the horizontal component of the force exerted by the beam on the hinge in a previous part that you do not show. Redo this using symbols with ##x## being the distance of the mass from the hinge. Examine the symbolic expression. What happens to the horizontal component when ##x## is reduced?
 
kuruman said:
Presumably you have already found the horizontal component of the force exerted by the beam on the hinge in a previous part that you do not show. Redo this using symbols with ##x## being the distance of the mass from the hinge. Examine the symbolic expression. What happens to the horizontal component when ##x## is reduced?
in the previous part, there are calculations for vertical components not horizontal
but how would the horizontal force be found? i dont know how
like the 17 cos 50 would be the horizontal tension of the rope... what about hinge, i have no idea about it...
 
kuruman said:
Draw a free body diagram and d
yes i did it...
 
hello478 said:
yes i did it...
Please post your FBD and embed in the post. Use “Attach files”, lower left. We need to see what you have done.
 
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kuruman said:
Please post your FBD and embed in the post. Use “Attach files”, lower left. We need to see what you have done.
done
took time as i had to draw it digitally again...
 
Please label all the forces in the diagram so that we can refer to them. Also post the equations that you get from saying that the net force on the beam is zero and the net torque on the beam is zero.

Do all that on your next post instead of editing the old one.
 
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kuruman said:
Please label all the forces in the diagram so that we can refer to them. Also post the equations that you get from saying that the net force on the beam is zero and the net torque on the beam is zero.

Do all that on your next post instead of editing the old one.
making a new post on this now...
 
  • #11
There is a subtle difference between a post and a thread :wink:

##\ ##
 
  • #12
BvU said:
There is a subtle difference between a post and a thread :wink:

##\ ##
yeah, sorry
i didnt know...
and i confused physics forums with instagram lol
 
Last edited:

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