Free body diagram on a block pushed against a ceiling

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SUMMARY

The discussion centers on creating a free body diagram for a 2kg block being pushed against a ceiling by an angled force of 70 degrees. Participants confirmed that both the gravitational and normal forces act downwards, while the applied force and friction must also be represented accurately. The importance of clarity and aesthetics in the diagram was emphasized to enhance readability, especially for evaluation purposes. The final consensus is that while the placement of force vectors is flexible, their directional accuracy is crucial.

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  • Understanding of free body diagrams
  • Knowledge of forces: gravitational, normal, and frictional
  • Basic physics concepts related to force vectors
  • Ability to visualize and sketch diagrams accurately
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  • Learn about vector representation of forces
  • Explore the effects of friction on motion and force diagrams
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Madelin Pierce
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Homework Statement


A 2kg block is being pushed along a ceiling with friction by an angled force of 70 degrees. I'm asked only for the free body diagram.

Homework Equations

The Attempt at a Solution


I figured both the gravitational and normal force would point downwards, but the force applied at an angle(figure an angle someone would apply by pushing with arms) I'm confused on how to draw on the diagram.
 
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Madelin Pierce said:

Homework Statement


A 2kg block is being pushed along a ceiling with friction by an angled force of 70 degrees. I'm asked only for the free body diagram.
70 degrees with respect to what?
Madelin Pierce said:
I figured both the gravitational and normal force would point downwards, but the force applied at an angle(figure an angle someone would apply by pushing with arms) I'm confused on how to draw on the diagram.
What is the direction of the force? That's the direction the force vector will make with the block.
 
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I forgot to add that friction plays a role. I'm just confused on how to set up the free body diagram
 
Your applied force looks good. Now you need to add gravitational force and frictional force vectors. In which directions do they act?
 
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Okay, it looks like you've got all the forces represented. That's good. What I would suggest, however, is that they be presented a bit more aesthetically. Often, leaving in the depiction of body being acted on makes things easier to recognize and process. So maybe something like this:

upload_2018-10-24_19-57-38.png


The placements of the force vectors around the block are not as important as getting their directions right, but making your diagram easy to read (especially by markers!) is at least a good portion of the battle :smile:
 

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Ok, thank you. I was drawing it on my computer sketch, so that's why it wasn't as clear.
 
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