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March 26, 2017

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In the figure below, two blocks are connected over a pulley. The mass of block A is 12 kg, and the coefficient of kinetic friction between A and the incline is 0.22. Angle θ is 30°. Block A slides down the incline at constant speed. What is the mass of block B?

  • Physics - ,

    well, the force down the incline+friction= massB*g

    12g*sinTheta+mu*12g*cosTheta=massB*g

    solve for massB

  • Physics - ,

    you actually have to subtract the frictional force not add it

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