On the harm of throwing garbage at high altitude from the perspective of physics

Momentum conservation ft = mv 2gh = v 2-v 0 2

At high altitude, it can be considered that v0=0, the greater the height, the greater the landing speed and the greater the momentum (mv) under a certain mass. Usually, after falling, it takes a short time to hit something (except bunkers and quilts), and the force F between them is extremely great. If the object is unfortunately your head, think about the consequences.