Which choice below is the best to describe why it is actually impossible to demonstrate conservation in real life, here on Earth.

Question

Real-life situations include some amount of external forces like friction, so the systems are not completely closed.

Internal forces in the objects absorb the total momentum of the object.

Determining the direction of travel is impossible.

The wind increases the momentum and decreases the friction.

Answer 1

The first choice is the best to describe why it is actually impossible to demonstrate conservation in real life, here on Earth. Real-life situations include some amount of external forces like friction, so the systems are not completely closed.