Question

How molecules in the air cause air resistance in cars travelling at high speed?

Answer 1

Molecules in the air cause air resistance by exerting an equal and opposite reaction force on objects. If something is hoisted into the air, it bumps into the molecules which react with a similar force that slows the object before gravity takes over. Air molecules have mass which occupy space and it is their cumulative effect that causes resistance.

Answer 2

Molecules in the air cause air resistance by exerting an equal and opposite reaction force on objects. If something is hoisted into the air, it bumps into the molecules which react with a similar force that slows the object before gravity takes over. Air molecules have mass which occupy space and it is their cumulative effect that causes resistance.