A single conservative force Fx = (6.0x - 12) (x is in m) acts on a particle moving along the x axis. The potential energy associated with this force is assigned a value of + 20 J at x = 0. What is the potential energy at x = 3.0 m?
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Not sure what this is all about. At x=0 Fx = 0 as well. No arbitrary assigned value.
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