Question

define the law of conversation of momentum and also give its formula​

Answer 1

Law of conservation of momentum states that momentum can neither be created nor destroyed and hence remains constant. The expression =

m1u1 + m2u2 = m1v1 + m2v2

where m is the mass in kg and u and v are initial and final velocities.

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Answer 2

THE LAW OF MOMENTUM CONSERVATION CAN BE STATED AS FOLLOWS. 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.

THE TOTAL MOMENTUM OF A CLOSED SYSTEM IS CONSTANT. THIS PRINCIPLE IS KNOWN AS THE LAW OF CONSERVATION OF MOMENTUM (OFTEN SHORTENED TO THE CONSERVATION OF MOMENTUM OR MOMENTUM CONSERVATION ). WHEN OBJECTS INTERACT, THEIR TOTAL MOMENTUM BEFORE THE INTERACTION IS THE SAME AS AFTER THE INTERACTION. ∑PBEFORE = ∑PAFTER.

1ST IS DEFINE & 2ND IS FORMULA

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