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As shown in the figure below, two masses m1 = 4.60 kg and m2 which has...

As shown in the figure below, two masses m1 = 4.60 kg and m2 which has a mass 75.0% that of m1, are attached to a cord of negligible mass which passes over a frictionless pulley also of negligible mass. If m1 and m2 start from rest, after they have each traveled a distance h = 2.80 m, use energy content to determine the following.
            (a) speed v of the masses: Ans 2.8 m/s
            (b) magnitude of the tension T in the cord. Ans 38.6 N

Please show me the work on how to be able to get the answers thank you

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