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Q1/Given the two-dimensional potential energy function
1
V(r) = v0 – -k8³e=r/8²
2
where r = ix + jy and V0, k, and 8 are constants,
a- find the force function.
b- For V0=1, k=6, and 8 = 1/3, find the magnitude of the force at the
point (x=1, y=2).

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