The potential energy for a conservative system is given by:
$U = ax^2 - bx$
Where $a$ and $b$ are positive constants. The law of the force governing the system is:

  • A
    $F = \text{constant}$
  • B
    $F = bx - 2a$
  • C
    $F = b - 2ax$
  • D
    $F = 2ax$

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