Suppose a $79\mathrm{.}5$ kg person is bouncing on a bathroom scale which has a force constant of $1\mathrm{.}75106$ N$/$m$.$

What is the maximum velocity of the person, in meters per second, if the amplitude of the bounce is $0\mathrm{.}19$ cm$?$

vmax $=$

What is the maximum energy, in joules, stored in the spring?

U $=$