a book, read, college student @ Pixabay

The concept of momentum is an important one in physics. In fact, it can be defined as the measure of how much a moving object will continue to move after being given a push or collision with another object. Momentum is calculated by multiplying the mass by velocity and then dividing that number by the time over which the change in motion takes place. This simple formula helps us understand why objects will keep moving for a while even if they have stopped being pushed- once they’ve acquired some momentum! There are a few important things to know about momentum. First, the momentum of an object will be equal and opposite to that of any objects it collides with. It’s for this reason why you might want to think twice before running into someone on the street- they’ll keep going even after you’ve stopped pushing them! Second, because velocity is inversely proportional to time (the faster something moves, the less time it has), we see that heavier objects tend to have more momentum than lighter ones do. This means that if two cars collide head-on at 100 km/h in one direction each, then one car will stop dead while the other may not only go back 50 meters but also spatter paint all over its surroundings as well

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