please help this physics questions with clear steps and details, thank you so much

4. (16 %)

(a) An object X rests on a frictionless horizontal table and is connected to another object Y which is hanged over a pulley as shown in Figure 1. Assume the mass of X and Y are 4.2 kg and 3 kg, respectively. Determine the acceleration of each object and the tension of the string.

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