Miscellany
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The force acting on a particle is F = (-a x - b x3 ) i, where a = 8 N/m and b = 2 N/m3.
Find the potential energy in J associated to this force at x = 2 m if U(x = 3 m) = 0. 82
Find the potential energy in J associated to this force at x = 4 m if U(x = 3 m) = 0. 82