How Do You Solve a Block on a Slope with a Given Weight?

AI Thread Summary
The discussion centers on solving a physics problem involving a block on a slope and the tension in a rope. There is confusion regarding the angle between the string and the block's face, with suggestions that it may not be accurately represented as 20 degrees. Participants debate the correct angles for tension components, noting that if the slope is 30 degrees and the rope is at 20 degrees, the angle of tension T1 should be recalculated to 50 degrees. The conversation also touches on the implications of the block's movement, indicating that it cannot descend uniformly due to changing angles. Accurate calculations of tension and angles are crucial for solving the problem effectively.
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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
BLOCK-SL.png
 
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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.
 
It is given as 20 but my drawing is not faithful
 
it looks more like this
00.jpeg
 
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
 
goodOrBad said:
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
Yes.
But the block cannot descend uniformly since that angle will change.
 
Okay but without the unfiorm descent would this be it
bl.jpeg
 
Looks right.
 
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