A falling coconut, a speeding car, a rolling stone, a flying aircraft, flowing water, blowing wind, a running athlete etc. are possessing which form of energy? 

Kinetic energy

A falling coconut, a speeding car, a rolling stone, a flying aircraft, flowing water, blowing wind, a running athlete etc. possess kinetic energy. 

In short, kinetic energy is the energy possessed by an object due to its motion. The kinetic energy of an object increases with its speed.