Mass of Block B for Inclined Pulley System with 10kg Mass A

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Two blocks are connected over a pulley the mass of block A is 10kg, and the coefficient of kinetic friction between A and the incline is 0.20.Angle θ of the incline is 30 ̊ .Block A slides down the incline at constant speed. What is the mass of block B?
 
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Show some work, please. We are here to help you do your own homework. We are not here to do your homework for you.
 
D H said:
Show some work, please. We are here to help you do your own homework. We are not here to do your homework for you.

This problem I do not understand it it he it is going to think in consideration to the one that could help
 
Can you describe the forces that act on block A?
They say that the velocity of A is constant, can you use that to say something about the relation between those forces?
 

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