Question $10(2$ points$)$

John's mass is half the mass of Jill. They both start walking and John moves twice as fast as Jill. What is Jill's kinetic energy compared to John's kinetic energy?Their kinetic energies are equal$\mathrm{.}2$ times as much$\backslash (1/8\backslash )$ as much$4$ times as much$\backslash (1/2\backslash )$ as much