<Dl> <Dd> U A → B = (b + c) − (a + c) = b − a (\ displaystyle U_ (A \ to B) = (b + c) - (a + c) = b-a \,) </Dd> </Dl> <Dd> U A → B = (b + c) − (a + c) = b − a (\ displaystyle U_ (A \ to B) = (b + c) - (a + c) = b-a \,) </Dd> <P> as before . </P> <P> In practical terms, this means that one can set the zero of U (\ displaystyle U) and φ (\ displaystyle \ phi) anywhere one likes . One may set it to be zero at the surface of the Earth, or may find it more convenient to set zero at infinity (as in the expressions given earlier in this section). </P>

In which scenario is elastic potential energy present