- #1
goodOrBad
- 25
- 2
- Homework Statement
- If given G find weight Q necessary for a uniform descent of G
- Relevant Equations
- Fx=0
Fy=0
This is my attempt of solving it
How Do You Solve a Block on a Slope with a Given Weight?
Click For Summary
Homework Help Overview
The discussion revolves around a physics problem involving a block on a slope, specifically focusing on the forces acting on the block and the angles involved in the setup. The subject area includes concepts of tension, angles, and forces in equilibrium.
Discussion Character
- Exploratory, Assumption checking, Problem interpretation
Approaches and Questions Raised
- Participants are examining the angles related to the tension in the rope and the incline of the slope. There are questions about the accuracy of the angle measurements and how they affect the calculations of tension components. Some participants are reconsidering the angles based on the geometry of the setup.
Discussion Status
The discussion is active, with participants providing feedback on each other's interpretations of the angles and the implications for the forces acting on the block. There is a recognition that the block's motion may not be uniform, prompting further exploration of the problem dynamics.
Contextual Notes
There are indications of potential inaccuracies in the original drawing and assumptions about the angles, which may affect the analysis. The problem appears to involve specific constraints related to the angles of the slope and the rope.
- #2
- 15,904
- 9,071
The angle between the string and the face of block G does not look like 20o to me. You will have to recalculate the components of the tension perpendicular and parallel to the incline.
- #3
goodOrBad
- 25
- 2
It is given as 20 but my drawing is not faithful
- #4
goodOrBad
- 25
- 2
it looks more like this
- #5
goodOrBad
- 25
- 2
or should the angle of T1 be 50 due to the slope being 30deg and the rope 20deg so 50deg
and that means angle around the pulley is 50+90=140deg
and that means angle around the pulley is 50+90=140deg
- #6
- 42,843
- 10,509
Yes.goodOrBad said:
But the block cannot descend uniformly since that angle will change.
- #7
goodOrBad
- 25
- 2
Okay but without the unfiorm descent would this be it
- #8
- 42,843
- 10,509
Looks right.