- #1
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Homework Help Overview
The discussion revolves around determining the tension in a string, with participants exploring the forces involved in the scenario, including gravity, tension, and friction. The context suggests a physics problem related to mechanics.
Discussion Character
- Exploratory, Assumption checking, Problem interpretation
Approaches and Questions Raised
- Participants discuss the need for a Free Body Diagram and question the presence of friction in the problem. There is uncertainty about the forces acting on the bodies involved, and some participants express confusion regarding the information provided.
Discussion Status
The discussion is active, with participants attempting to clarify the forces at play and the importance of friction. Some guidance has been offered regarding the use of a Free Body Diagram, but there is no consensus on the assumptions being made.
Contextual Notes
Participants note that the problem includes coefficients of kinetic and static friction, which may influence the analysis, but there is a concern about introducing assumptions that are not explicitly stated in the problem.
- #2
flyingpig
- 2,574
- 1
Start with a Free Body Diagram
The only formula you will ever need is F = ma, and some trig skills
The only formula you will ever need is F = ma, and some trig skills
- #3
physicsgurl12
- 184
- 0
i think the forces are gravity, tension and frictional.
- #4
physicsgurl12
- 184
- 0
wait no there's surface
- #5
flyingpig
- 2,574
- 1
physicsgurl12 said:
What do you mean you "think" there is friction? That's actually important...
- #6
physicsgurl12
- 184
- 0
um because its touching the surface
- #7
flyingpig
- 2,574
- 1
physicsgurl12 said:
Does the problem state there is friction? We don't want to add anything we don't want
- #8
physicsgurl12
- 184
- 0
it says " the coefficients of kinetic friction and static friction between the left hand box and the plane are .15 and .30"
- #9
flyingpig
- 2,574
- 1
physicsgurl12 said:
Wellllllllll wouldn't that be great if you told us that from the start?
You still haven't provided us a Free Body Diagram. It's good you know what forces are present, but what forces are acting on each body?
- #10
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