What is the law of conservation of momentum?

1 Answer
Jul 1, 2018




if two elastic balls collide horizontally (no other forces affecting at that direction) then the momentum is conserved between them
so if one ball loses speed the other ball will gain speed so the above relation is applied


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as in this examples even though the first ball stopped, its momentum was transmitted to the other ball.

#color(green)("Note:")# the above relation is direction dependant so you suppose one direction to be positive so velocities on that direction is positive while the velocities on the other direction is negative

I hope this helps.