2006-11-30 07:33:07 · 19 answers · asked by nothingspecial 1 in Science & Mathematics ➔ Physics
when something moves and the weight carries it to keep moving and then it's hard to stop.
Like a freight train or an NFL running back.
2006-11-30 07:34:38 · answer #1 · answered by Joe Somebody 6 · 0⤊ 1⤋
In classical mechanics, momentum (pl. momenta; SI unit kg m/s) is the product of the mass and velocity of an object.
In general the momentum of an object can be conceptually thought of as the tendency for an object to continue to move in its direction of travel. As such, it is a natural consequence of Newton's first law.
Momentum is a conserved quantity, meaning that the total momentum of any closed system (one not affected by external forces) cannot be changed.
2006-11-30 09:00:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Mass in motion. Think how hard it is to start pushing a stationery car on a flat surface. Once it starts rolling, it's much easier - that's because it has momentum. You'd have to apply an opposite force to stop it moving. The heavier the car, the more momentum it has when it's moving and the harder it would be to stop it. The momentum is its speed x its weight i.e. mass x velocity.
2006-11-30 07:43:48 · answer #3 · answered by goulash 2 · 0⤊ 1⤋
Some ways I could think of describing it have already been used. It is a measure of the inertia or impetus of a moving object, the product of its mass and velocity.
Momentum is NOT a force of any kind.
2006-11-30 07:46:13 · answer #4 · answered by msi_cord 7 · 0⤊ 0⤋
Momentum = mass x velocity
2006-11-30 10:28:56 · answer #5 · answered by Kemmy 6 · 0⤊ 0⤋
Simple question, difficult answer if you want to be precise.
There is a good article on Wikipedia, the free, online encyclopedia at:
http://en.wikipedia.org/wiki/Momentum
But, warning, it is technical and covers several concepts about momentum in Physics! Hope this helps!
2006-11-30 07:38:06 · answer #6 · answered by cfpops 5 · 1⤊ 0⤋
momentum is the force that causes an object to move. Not the actual movement, that is movement, it is the force which can be measured.
2006-11-30 07:36:19 · answer #7 · answered by Anonymous · 0⤊ 1⤋
The quanitity of motion in a body as measured by the product of it's mass and velocity.
2006-11-30 07:36:28 · answer #8 · answered by WC 7 · 1⤊ 0⤋
Mass X velocity
i.e a bullet of 10gm travelling at 1000m per second = 10000 gm mps
2006-11-30 07:36:42 · answer #9 · answered by Anonymous · 2⤊ 0⤋
momentum = mass * velocity
2006-11-30 08:53:57 · answer #10 · answered by chopchubes 4 · 0⤊ 0⤋
Rosey Odonell running down a hill.
2006-11-30 07:35:21 · answer #11 · answered by ScottOttack 2 · 1⤊ 0⤋