What does the law of conservation of momentum states?

Answer 1

Newton's Third Law of Motion states that, if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.

Assume a closed system in classical mechanics or an isolated system in thermodynamics. This is a system which does not exchange any matter outside and is not acted upon by any outside forces. In these theoretical conditions a mass m1 traveling at velocity u1 hits a mass m2 traveling at velocity u2 their velocities change to v1 and v2:

m1u1 + m2u2 = m1v1 + m2v2

So, simply put: In the absence of outside forces, the total momentum of two colliding objects does not change as a result of the collision of the objects. However, there are no perfect inelastic collisions. There are energy losses, mainly due to the generation of heat in the colliding bodies and the release of sound energy into the surroundings. This is the reason that a Newton's cradle eventually stops.

Answer 2

Newton's Third Law of Motion states that, if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.

Assume a closed system in classical mechanics or an isolated system in thermodynamics. This is a system which does not exchange any matter outside and is not acted upon by any outside forces. In these theoretical conditions a mass m1 traveling at velocity u1 hits a mass m2 traveling at velocity u2 their velocities change to v1 and v2:

m1u1 + m2u2 = m1v1 + m2v2

So, simply put: In the absence of outside forces, the total momentum of two colliding objects does not change as a result of the collision of the objects. However, there are no perfect inelastic collisions. There are energy losses, mainly due to the generation of heat in the colliding bodies and the release of sound energy into the surroundings. This is the reason that a Newton's cradle eventually stops.

Answer 3

Law of conservation of momentum states that - if a group of bodies are exerting force on each other, i.e., interacting with each other, their total momentum remains conserved before and after the interaction provided there is no external force acting on them.

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Answer 4

Newton's Third Law of Motion states that, if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.

Assume a closed system in classical mechanics or an isolated system in thermodynamics. This is a system which does not exchange any matter outside and is not acted upon by any outside forces. In these theoretical conditions a mass m1 traveling at velocity u1 hits a mass m2 traveling at velocity u2 their velocities change to v1 and v2:

m1u1 + m2u2 = m1v1 + m2v2

So, simply put: In the absence of outside forces, the total momentum of two colliding objects does not change as a result of the collision of the objects. However, there are no perfect inelastic collisions. There are energy losses, mainly due to the generation of heat in the colliding bodies and the release of sound energy into the surroundings. This is the reason that a Newton's cradle eventually stops.

Answer 5

Mass is the measure of how much matter an object is made from. Velocity is the

speed of an object in a particular direction. Momentum is the the Mass of an object multiplied by its velocity. A stationary object with a mass of 1 and velocity of 0 has a momentum of 0 because 1 X 0 = 0. An object of mass 1 and velocity 2 has a momentum of 2 because 1 X 2 = 2. If the object of momentum 2 hits the object of

momentum 0, the velocity of both objects is shared, which means the both objects have a velocity of 1. The mass of both objects is unchanged so the momentum of both objects equals 1 because 1 X 1 = 1. The combined momentum of the two objects is 2 because 1 + 1 = 2. The original momentum of both objects was 2 because 2 + 0 = 2. The momentum after the objects hit each other is 2, which means the momentum as not changed, this is what the the law of conservation of momentum means. The law is true for objects of different mass and if both are moving with different velocities and for more than two objects colliding.

Answer 6

It means that the total momentum of all objects interacting with one another remains constant regardless of the nature of the forces between the objects