i don't think it can, sorry
The rock will be lifted by the force f for as long as the force is applied to it.
When you stretch a rubber band, it tries to overcome your force and return to its original state. This is what is called self adjusting force. It helps body achieve its lowest potential state when the external force stops acting.
Gravity
There is no force to stop it either. It has energy.
The work done on the fallen tree would depend on the force applied, not just the distance lifted. Work is calculated as force multiplied by distance. Without knowing the force applied, we cannot determine the work done.
Yes, a gun can go off accidentally without any external force or trigger being pulled if there is a mechanical malfunction or defect in the firearm.
A particle in motion without any external force acting on it will continue moving at a constant velocity in a straight line, following Newton's first law of motion. This motion will remain unchanged unless an external force is applied to alter its velocity or direction.
A non-applied force is a force that arises from within an object or system, rather than from an external source. These forces include friction, spring forces, and tension in a rope. They can affect the motion or equilibrium of an object without any contact with an external force.
Force the lever will apply to the load being lifted.
Acceleration can be produced in a body without applying any external force through an internal force, such as tension in a string or a normal force. For example, when an object is swung in a circle on a string, the tension in the string provides the centripetal force that causes the acceleration towards the center of the circle.
The force exerted by the load being lifted is called the weight of the load. It is the force acting downwards due to gravity. This weight needs to be overcome by the lifting force to lift the load.
Weight is considered an external force because it is the force exerted by gravity on an object due to its mass. Gravity is an external force acting on the object from the outside environment.