What Motor Power is Needed to Move a Cylinder Drum?

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To determine the motor power needed to move a cylinder drum with a diameter of 1.2m, length of 1.5m, and a thickness of 2mm carrying a total load of 200kg, one must calculate the required torque and power transmission. The application involves using the cylinder drum to lower the humidity percentage of garbage. Factors such as friction, load weight, and the desired speed of movement will influence the calculations. Understanding these parameters is essential for selecting an appropriate motor. Accurate calculations will ensure efficient operation of the cylinder drum in its intended application.
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Base on the question, i would like to know the the torque,power transmission needed .

diameter of cylinder: 1.2m
length of cylinder:1.5m
thickness of the drum: 2mm
total load carry: 200kg

how to determine the motor power needed?
 
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Is this a homework question? What is the application?
 
it can consider as homework..the cylinder drum used to lower the humidity percentage of garbage.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
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