Response:
When the expelled air moves downward, the thrust force counteracts it in the upward direction, enabling jets to take off vertically without needing a runway due to reverse thrust.
Clarification:
According to Newton's third law of motion, every action induces an equal and opposite reaction.
Thrust reversal, known as reverse thrust, acts against the aircraft's direction, causing deceleration.
In general, when a commercial aircraft expels air forward, this thrust acts backward to reduce the aircraft's speed due to thrust reversal.
Applications of thrust reversal include the following:
As air is expelled forward, thrust acts in the opposite direction, resulting in the craft slowing down.
When the expelled air flows downward, the upward acting thrust allows jets to launch vertically without needing a runway in this context.
