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Define momentum of a body.prove with the help of 3rd law of motion that the total momentum of two bodies is conserved during collision.?
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Define momentum of a body.prove with the help of 3rd law of motion tha...
In physics, momentum is the property or tendency of a moving object to continue moving. For an object moving in a line, the momentum is the mass of the object multiplied by its velocity
Newton's third law implies that the total momentum of a system of interacting objects that are not acted on by outside forces is conserved.
In collisions between two isolated objects Newton's third law implies that momentum is always conserved.  In collisions, it is assumed that the colliding objects interact for such a short time, that the impulse due ton external forces is negligible.  Thus the total momentum of the system just before the collision is the same as the total momentum just after the collision. 
We always have m1v1i + m2v2i = m1v1f + m2v2f.

It needs to be explained in more detail. hope u understand
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Define momentum of a body.prove with the help of 3rd law of motion tha...
Momentum of a body

Momentum of a body is defined as the product of its mass and velocity. It is a vector quantity and is denoted by the letter ‘p’. Mathematically, momentum is expressed as:

p = mv


where ‘p’ is momentum, ‘m’ is mass and ‘v’ is velocity.

Conservation of momentum during collision

According to Newton’s third law of motion, for every action, there is an equal and opposite reaction. This law applies to collisions as well. When two bodies collide with each other, they exert equal and opposite forces on each other.

Conservation of momentum during a collision can be explained as follows:



  • Before the collision, the two bodies have their separate momenta.

  • During the collision, the two bodies exert equal and opposite forces on each other, resulting in a change in their velocities.

  • As per the law of conservation of momentum, the total momentum of the two bodies before the collision is equal to the total momentum of the two bodies after the collision.

  • Therefore, the sum of the momenta of the two bodies is conserved during the collision.



Mathematically, the conservation of momentum can be expressed as:


m1v1i + m2v2i = m1v1f + m2v2f


where m1 and m2 are the masses of the two bodies, v1i and v2i are their initial velocities, and v1f and v2f are their final velocities.

Conclusion

From the above explanation, it can be concluded that the total momentum of two bodies is conserved during a collision, as per the law of conservation of momentum and Newton’s third law of motion.
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Define momentum of a body.prove with the help of 3rd law of motion that the total momentum of two bodies is conserved during collision.?
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