As a Particle Moves Along the X Axis It Is

question 83

Multiple Choice

As a particle moves along the x axis it is acted upon by a single conservative force given by F_x = (20 − 4.0x) N where x is in m. The potential energy associated with this force has the value +30 J at the origin (x = 0) . What is the value of the potential energy at x = 4.0 m?

• A) −48 J
• B) +78 J
• C) −18 J
• D) +48 J
• E) +80 J

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