A block (mass m1) lying on a frictionless inclined plane is connected to a mass m2 by a massless cord passing over a pulley.
A) determine a formula for the acceleration of the system of the two blocks in terms of m1, m2, Θ and g.
b) what conditions apply to masses m1 and m2 for the acceleration to be in one direction (say, m1 down the plane), or in the opposite direction?
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