External force
An isolated system is one which is not subject to any external forces or influences from its surroundings. It does not exchange energy or matter with its surroundings, allowing for conservation of energy and momentum within the system.
Even if it does the net force acting on it should be zero. That's why it's called isolated.
An isolated system that is not subject to any external forces is one where the total mechanical energy remains constant. This system obeys the law of conservation of energy, with no external work being done on it. An example could be a satellite orbiting the Earth in a vacuum.
A closed system in which the net external force is zero is in mechanical equilibrium.
A single isolated force cannot be identified because every force acts in relation to other forces in a system. To fully understand the effect of a force, it is essential to consider its interactions with other forces present in the system. Isolating a force would eliminate the context needed to determine its impact accurately.
In an isolated system, the total external forces acting on the system are zero. Since momentum is a vector quantity that depends on both the mass and velocity of an object, changes in momentum require an external force. Without any external force acting on the system, the total momentum remains constant, resulting in zero change in momentum.
In an isolated system, the total mass remains constant and does not change.
In an isolated system, the total energy remains constant and does not change.
An isolated system is a system in which neither matter nor energy can enter or leave the system. This means that no interactions with the surroundings can occur in terms of energy or matter exchange. The total energy and mass within an isolated system remain constant.
An isolated system cannot exchange either energy or matter outside the boundaries of the system
This is known as the law of conservation of momentum, which states that the total momentum of an isolated system remains constant if no external forces are acting on it.
The law that states if no net force acts on a system, then the total momentum of the system does not change is the law of conservation of momentum. This law is based on Newton's third law of motion and applies to isolated systems where external forces are absent.