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    1) In the drawing the rope and the pulleys are massless
    and there is no friction Find
    a) the tension in the rope, and
    b) the acceleration of the 12kg block. (The 12 kg block is on the table
    connected to a 3 kg block which is hanging off the table by a pulley)

    2) A chain consisting of five links, each of mass 0.10kg, is lifted
    vertically with a constant acceleration of 2.5 m/s^2. Find (a) the
    forces acting between adjacent links, (b) the force F exerted on the
    top link by the agent lifting the chain, and (c) the net force acting
    on each link.

    3)Two blocks are connected over a massless pulley. The mass of block A
    is 10.0 kg and the coefficient of kinetic friciton is 0.20. Block A
    slides down the incline at constant speed.
    What is the mass of block B? ( the angle is 30 degrees)

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