For a collision where objects will be moving in 2 dimensions (e.g. x and y), the momentum will be conserved in each direction independently (as long as there's no external impulse in that …

There's different ways you could characterize this collision, but one thing that physicists are almost always interested in is whether this collision is going to be elastic or inelastic.

Collision theory states that molecules must collide to react. For most reactions, however, only a small fraction of collisions produce a reaction.

We know from collision theory, that particles have to have enough kinetic energy to overcome the activation energy for a reaction to occur. So we can draw a line representing the activation …

Check your understanding of collision theory in this set of free practice questions.

So what happens over there? So what we're gonna do is just go through the different scenarios. The general idea is that one plate is going to get subducted under another. Tthey're ramming …

How would I draw a free body diagram of a horizontally moving object, like a braking car?

Conservation of momentum can be used to predict the motion of objects after a collision. Let's try two practice problems together.

Learn how to use a force vs. time graph to find the change in momentum. Solve an example problem to find the final velocity of a spaceship.

But if you were told they stick together, in a collision, two masses, that's what you could do. It's much more likely, that if you're dealing with a golf ball and a tennis ball, that you're gonna be …