Our class is on the second week of momentums. Again with the basics, momentum is mass x velocity. It is a vector unit. Large objects moving slow can have the same momentum as a small object moving fast. So it is possible that a drinking straw if picked up during a storm or something and gains enough speed it can puncture through wood. What do you think would happen in a collision between two cars if (1) the cars are the same mass, (2) one cart is two times the size of the other and (3) they have different speed variables? All of this can be found using formulas and basic physics. Take in to consideration the law of conservation of momentum also, that is Pin=Pout (momentum in=momentum out). The picture shows a head on crash between a big truck moving at around 10 km/h and a little car going 30 km/h. This is an example of a real life scenario. A lot of times if it is a head on crash it is fatal depending on the impulse of the crash, which is caused by the momentums of both vehicles. This is because momentum is transferred between objects, Pin=Pout. Its logic thinking from there.If one car is going North and one East and they collide the end result will be a lot different than a head on crash. You can find what direction the crash will end up at and what speed it was be using physics formulas to solve momentum problems.