The Potential Energy of a 0

Multiple Choice

The potential energy of a 0.20-kg particle moving along the x axis is given by U(x) = (8.0 J/m²) x² − (2.0 J/m⁴) x⁴.When the particle is at x = 1.0 m the magnitude of its acceleration is:

A) 0 m/s²
B) -8 m/s²
C) 8 m/s²
D) -40 m/s²
E) 40 m/s²