Fôrças dependentes da posição

1) U(x) = −U_{o} \frac{x^{2}+1}{x^{4}+8}

2) U(x) = U_{o} (\frac{1}{x^{2}} − \frac{2}{x^{4}} )

3) U(x) = U_{o} (\frac{1}{x^{2}} − \frac{3}{x} + 2)

4) U(x) = U_{o} \frac{1}{x^{2}+1}

5) U(x) = U_{o} (\frac{4}{x^{2}+1} + x^{2})

6) U(x) = U_{o} \frac{4}{x^{2}−4}

7) U(x) = U_{o} \frac{4∗X}{x^{2}+1}

8) U(x) = U_{o} (2x^{3} − x^{2})

9) U(x) = U_{o} (1 − \frac{5}{x^{2}+1})

11) U(x) = −W d^{2} \frac{x^{2}+d^{2}}{x^{4}+8d^{4}} 11) U(x) = −W d^{2} \frac{x^{2}+d^{2}}{x^{4}+8d^{4}} 11) U(x) = −W d^{2} \frac{x^{2}+d^{2}}{x^{4}+8d^{4}} 12) U(x) = −W d^{2} \frac{x^{2}+d^{2}}{x^{4}+8d^{4}} 13) U(x) = −W d^{2} \frac{x^{2}+d^{2}}{x^{4}+8d^{4}}