help with newtons laws please1?

Question

in class our teacher was explaining newtons laws(or thought he was)and he said something about mu-mv\t and m1v1-m2v2 and something about explosions i didn't really get it so colud some1 pleeeease explain it for me

Answer 1

Basically the law you are talking about is the theory that an object in motion will stay in motion until another force acts upon it.

Momentum is calculated by multiplying the mass by the velocity of the object. There are many applications for these caclulations like if you wanted to find out what would happen in a head on collision between two objects. You would be able to calculate in which direction the two objects would travel after the collision.

Anyway, here is a website that I found for you that explains it completely.

Answer 2

i dont know what that even is truthfully letters are just variables that dont mean a thing unless you explain what they mean second those numbers tied in are they subscripts? because it kindof looks like mass1times velocity1=mass2times velocity 2 which is the basic momentum formula
In a nutshell newtons 3 laws are simply in semi terrible english and discription
Objects that are in a current state of motion stay in that state of motion unless affected upon by an outside force
F=ma where force =mass times accleration
and the last one a very easy yet so many people misunderstand
For every action there is an equil and opposite reaction
now saying this
YOU are sitting on a chair and gravity is pulling you towards the center of the earth what is the reaction force?

Answer 3

Sounds like you were covering momentum. For those inclined towards calculus, an object's momentum is the antiderivative of the net force exerted on it. For those of you who prefer algebra, momentum is determined by the equation p = mv, where "m" is the object's mass, "v" is its velocity, and "p" is the momentum.

The full concept of momentum is beyond the scope of this service. For more info, consult your local physics textbook or the link below.

Answer 4

Cutting it to short, he was talking about the law that states that everything will continue to do whatever it is doing until acted upon another force. Like if you dropped a ball, it wouldn't stop falling until it hit the ground. Or if you rolled a ball, it wouldn't stop rolling until it hit something or gravity stopped it.