Final answer:
When jumping on a trampoline, landing on your feet allows you to reach a greater height compared to landing on your back.
Step-by-step explanation:
When jumping on a trampoline, you can reach a greater height when you land on your feet compared to landing on your back. This is because when you land on your feet, your legs can act as springs and store potential energy. As you bend your legs upon impact, the potential energy is converted into kinetic energy, causing you to bounce higher. On the other hand, when you land on your back, the impact energy is dissipated over a larger area and it is harder for the energy to be converted into upward motion, resulting in a lower bounce.