Question

state and explain law of conservation of momentum​

Answer 1

Answer:

The law of conservation of momentum states that for two objects colliding in an isolated system, the total momentum before and after the collision is equal. This is because the momentum lost by one object is equal to the momentum gained by the other.

Answer 2

Explanation:

Solution :

Law of conservation of momentum states that;

Law of conservation of momentum states that;For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.

• Consider two colliding particles A and B whose masses are m1 and m2 with initial and final velocities as u1 and v1 of A and u2 and v2 of B.
• The time of contact between two particles is given as t.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.

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