"And as we know from this particular Écrasement disposition, we've got debris from across the road, into the Société, and indeed je the helicopter where it landed on the roof." Since the kinetic energy before the collision equals the kinetic energy after the collision (kinetic energy is conserved), this is https://mysocialname.com/story3179188/nirelli-s-auto-service-collision-un-aper%C3%A7u