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Physics Work,Power & Energy Level: High School

A single conservative force Fx = (6.0x – 12) N (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 ?

+11J

+29J

+9.0

-9.0

+20J