A block (mass mA) lying on a fixed frictionless inclined plane is a mass ma by a cord passing over a pulley, as shown in Fig. 4-54.
(a) Determine a formula for the acceler ation of the system in terms of mA, mB, ?, and g,
(b) What conditions apply to masses mA and mp for the acceleration to be in one direction (say, ma down the plane), or in the opposite direction? Ignore the mass of the connected to cord and pulley.
Answer:
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