Question

State and deduce the principle of conservation of momentum.

Answer 1

PRINCIPAL OF CONSERVATION OF MOMENTUM STATES THAT THE SUM OF MOMENTA OF THE TWO OBJECTS BEFORE COLLISION AND AFTER COLLISION WOULD REMAIN SAME UNTIL NO EXTERNAL FORCE ACTS ON IT.
EASY WAY- SUPPOSE YOU AND TOUR FRIEND ARE MOMENTA ALSO TOGETHER YOUR FRIEND AND YOU ARE A SYSTEM IT WOULD BE FINE IF YOU WOULD FIGHT AND THEN YOU WOULD FIGHT BUT WHEN THE TEACHER COMES IT BECOMES A PROBLEM. SO, UNTIL THERE IS NO EXTERNAL FORCE ACTING IT IS OK BUT WHEN IT ADDS TITAL MOMENTUM BECOMES 0.
I HOPE IT WILL HELP YOU
IF YOU LIKED IT PLZ RATE IT THE BRANIEST
GOOD DAY