Perspective on a FBD?

  • Thread starter crybllrd
  • Start date
  • #1
crybllrd
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Homework Statement


A cup is spinning around on a Lazy Susan...


Homework Equations





The Attempt at a Solution


My question is about the perspective. The picture on my book is like this:
___________|---0.5m---\_/
=====================


So should I draw the free body diagram from this perspective, with the weight by the Earth on the cup pointing down, or from the top down perspective where I can see the friction force?
 

Answers and Replies

  • #2
Delphi51
Homework Helper
3,407
11
You can go either way. Show forces into the page as an X in a circle.
The friction force would be toward the center of the turntable, so would look the same in either view.
 

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