Hehe, in this problem, when you fall, you will step on the trampoline hard, put aside the round-trip process, and only study the contact process, because you lose weight in the round-trip process. Assuming that the force is f, there are:

F=M*a so a=F/M, that is to say, the harder you push, the lower you jump,,, but as we all know, people with large weights generally have greater strength, and it is also related to the timing of pushing.