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When there is no external force acting on a body , which physical quantity is conserved?
Force and laws of Motion
Angular Momentum. The conserved quantity we are investigating is called angular momentum. The symbol for angular momentum is the letter L. Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero.
What else can I help you with?
When is angular momentum conserved in a physical system?
Angular momentum is conserved in a physical system when there are no external torques acting on the system.
When is momentum conserved in a collision?
Momentum is conserved in a collision when there are no external forces acting on the system.
When is linear momentum conserved?
Linear momentum is conserved in a closed system when there are no external forces acting on it. This means that the total linear momentum of the system before an event is equal to the total linear momentum after the event.
When is kinetic energy conserved in a system?
Kinetic energy is conserved in a system when there are no external forces acting on the system, meaning that the total amount of kinetic energy remains constant.
What is the product mass and velocity?
The product of mass and velocity is momentum, which is a vector quantity that represents the motion of an object. Momentum is equal to the mass of the object multiplied by its velocity. It is a key concept in physics and is conserved in isolated systems where no external forces are acting.
When is angular momentum conserved in a physical system?
Angular momentum is conserved in a physical system when there are no external torques acting on the system.
When is momentum conserved in a collision?
Momentum is conserved in a collision when there are no external forces acting on the system.
Angular momentum about the center of the planet is conserved?
Angular momentum is conserved when there is no external torque acting on a system. For a planet, the net torque acting on it is negligible, so its angular momentum about its center will be conserved unless acted upon by an external force. This conservation principle is a consequence of the rotational symmetry of the system.
When is linear momentum conserved?
Linear momentum is conserved in a closed system when there are no external forces acting on it. This means that the total linear momentum of the system before an event is equal to the total linear momentum after the event.
When is kinetic energy conserved in a system?
Kinetic energy is conserved in a system when there are no external forces acting on the system, meaning that the total amount of kinetic energy remains constant.
What is the product mass and velocity?
The product of mass and velocity is momentum, which is a vector quantity that represents the motion of an object. Momentum is equal to the mass of the object multiplied by its velocity. It is a key concept in physics and is conserved in isolated systems where no external forces are acting.
When is angular momentum conserved?
Angular momentum is conserved when there is no net external torque acting on a system. This principle is described by the law of conservation of angular momentum, stating that the total angular momentum of a system remains constant if there are no external influences causing a change.
When is momentun and total energy conserved?
Momentum and total energy are conserved when there are no external forces acting on a system. This can occur in isolated systems or when external forces are negligible compared to internal forces. Examples include collisions in the absence of friction or air resistance.
Is impulse conserved in collision?
In collisions, impulse is not always conserved because impulse depends on the change in momentum of the objects involved. If external forces are acting during the collision, then impulse may not be conserved. However, in ideal situations like perfectly elastic collisions where no external forces are present, the total impulse before and after the collision would be the same.
What is conserved during a reaction?
Both mass and charge
Why is momentum conserved in a closed system?
Momentum is conserved in a closed system because there are no external forces acting on the system to change the total momentum. This principle is based on the law of conservation of momentum, which states that the total momentum of a closed system remains constant unless acted upon by an external force.
When momentum can be conserved?
Momentum can be conserved when the total external force acting on a system is zero. In these cases, the total momentum of the system remains constant before and after the interaction. This principle is commonly observed in situations involving collisions, explosions, or interactions between objects.
