Potential energy is involved in each of these events. match each event with it's source of potential energy.

Trampolin --> elastic potential energy

Elastic potential energy is the form of energy stored in an elastic object, such that the trampoline.

Chemical substance --> chemical potential energy

Chemical potential energy is the form of energy stored in the chemical bonds of the molecules, and it is released when the substance reacts and releases heat.

The skydiver --> gravitational potential energy

Gravitational potential energy is the form of energy possessed by an object located at a certain height above the ground - in this case, the skydiver, which is at a very high altitude above the ground.

f=ma newton

f=100x2.5=250n