Question

hi
I will Mark as brain list please tell me answer of this question .​

Answer 1

Answer:

$\huge\bold\red{SOLUTION}$

ne of the most powerful laws in physics is the law of momentum conservation. ... For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

$\huge\bold\purple{derivation}$

A=m1(v1−u1) (change in momentum of particle A)

B=m2(v2−u2) (change in momentum of particle B)

FBA=−FAB (from third law of motion)

FBA=m2∗a2=m2(v2−u2)t

FAB=m1∗a1=m1(v1−u1)t

m2(v2−u2)t=−m1(v1−u1)t

m1u1+m2u2=m1v1+m2v2

Therefore, above is the equation of law of conservation of momentum where, m1u1+m2u2 is the representation of total momentum of particles A and B before collision and m1v1+m2v2 is the representation of total momentum of particles A and B after collision.

Answer 2

Answer:

Law of conservation of linear momentum is a extremely important consequence of Newton's third law of motion in combination with the second law of motion.

According to law of conservation of momentum

When two or more bodies acts upon each other their total momentum remains constant provided no external forces are acting

So, Momentum is never created or destroyed.

When this law is applied for a collision between two bodies, the total momentum of the colliding bodies before collision is equal to the total momentum after collision.

We can apply this law for a collision between two vehicles. This law is applicable for all types of collisions.

$m1u1 + m2u2 = m1v1 + m2v2$