It is the push or pull on an object which may change or may not change the state of the object depending upon its amount.
If unopposed, force accelerates the object in its direction.
Force may increase or decrease the velocity of the object.
It is the reaction force acting on an accelerated object because of applied force.
Thrust acts on the accelerated object in the direction opposite to the applied force hence it accelerates the object in the direction opposite to the applied force.
We are calling the reaction force as “Thrust” when the reaction force increases the velocity of the object.
Its magnitude is equal to that of applied force.
It always increases the velocity of the object.
SI unit for both force and thrust is “Newton” (N)