Center of Gravity for nonuniform plank

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Homework Help Overview

The discussion revolves around determining the center of gravity for a nonuniform plank with a box resting at one end. The plank's dimensions and mass are specified, along with the distribution of sand within the box.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relationship between torque and the center of gravity, with some questioning whether Xcm refers to the fulcrum or the center of gravity. Others seek clarification on whether to use the torque condition or the center of gravity equation.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem and seeking guidance on the appropriate approach to take. Some have expressed confusion about the problem statement and the relevant concepts.

Contextual Notes

There is a request for the complete problem statement, indicating potential missing information or clarity needed for effective discussion.

bullsangelsra
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Homework Statement


A box of negligible mass rests at the left end of a 1.90m, 23.5kg plank The width of the box is 75.0 , and sand is to be distributed uniformly throughout it. The center of gravity of the nonuniform plank is 50.0 from the right end.


I am lost pls help me

i know the torque is going to be zero, but i don't know where to go from here
 
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is Xcm equal to the fulcrum or the center of gravity?
 
do i use the fact that torque equals zero or do i use the equation for the center of gravity..can someone just point me in the right direction?
 
bullsangelsra said:

Homework Statement


A box of negligible mass rests at the left end of a 1.90m, 23.5kg plank The width of the box is 75.0 , and sand is to be distributed uniformly throughout it. The center of gravity of the nonuniform plank is 50.0 from the right end.
What is the question? Please state the complete problem exactly as it was given.
 

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