A single conservative force F x acts on 1 kg particle that moves along x axis The potential energy U x is given by U x x 2 20

Question

A single conservative force F x acts on 1 kg particle that moves along x axis The potential energy U x is given by U x x 2 20 Where x is in meters and U x in joules If particle has a kinetic energy of 20 J at x 5 find mechanical energy in joules at x 2m

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