A 75-kg circus performer jumps from a 5.0-m height onto a trampoline and stretches it downward 0.30

Question:

A 75-kg circus performer jumps from a 5.0-m height onto a trampoline and stretches it downward 0.30 m. Assuming that the trampoline obeys Hooke’s law,
(a) How far will it stretch if the performer jumps from a height of 8.0 m?
(b) How far will the trampoline stretch if the performer stands still on it while taking a bow?