I think this is a question about how a rocket motor works. If you burn high explosive fuel in a closed box and the box is strong enough, the box won't move because the forces on all the walls balance each other out in all directions. But if you open a hole in one wall, then suddenly there is imbalance, and the unbalanced force on the wall opposite the hole will force the box to accelerate in that direction. A rocket motor is exactly such a box, which is continually fed with high explosive fuel.
what is the pushing or pulling force exerted by the engine of an aircraft or rocket
It can be either. Horse-drawn carts are virtually all pulled. Library and shopping carts are pushed. However, any pulling or pushing force that is exerted includes a pushing force against the ground (i.e. friction).
Gravity is NOT a pulling Force. Gravity is a "Pushing" Force of Mass Expansion. Earth Mass is Expanding at the Gravitational Acceleration rate of 9.808175174 m/s^2
Tensile (pulling) force
Earth's gravity pulling on the Sun.
If an object is stationary on a surface then the forces acting on it are the Gravitational force and the Normal force(the force of the surface pushing back against the object). Technically you could be pulling(or pushing) that object from opposite directions with equal forces and it would remain stationary. The important thing to understand is that a stationary object remains stationary so long as the net forces applied to it equal zero.
pushing
pulling
a spring balance is used to measure a pushing or pulling force.
Pushing.
Yes.
A force is pushing or pulling on something.
field force
Both
pushing
Applied Force
force
friction