Suppose that a stunt woman of mass 96 kg
jumps off the top of the arch with an elastic
band attached to her feet. She reaches the
ground at zero speed.
The acceleration of gravity is 9.81 m/s^2.
Find her kinetic energy after 3.8 s of the
flight. Assume the elastic band has no length
and obeys Hooke’s Law.
Answer in units of kJ.