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Finding the Acceleration of a Mass on a Frictionless Pulley

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A 2.0 kg mass and a 5.0 kg mass are attached to a lightweight cord that passes over a frictionless pulley. The hanging masses are free to move. Choose coordinate systems for the two masses with the positive direction up for the smaller mass and down for larger mass.

(a) Create a pictorial model.
(b) Create a physical model with motion and free-body diagrams.
(c) Find the acceleration of the smaller mass.

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The solution finds the acceleration of a mass on a frictionless pulley.

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