Tuesday, November 17, 2009

blog #5

Well i got into a car crash this weekend. It sucks and for the whole time i never thought about physics. afterwards though, i looked at it and found a positive out of it. This could be another physics blog, and has everything to do with momentum. you see, i hit a range rover that had a much larger mass than my mazda. Although i was at a higher velocity and had more momemtum, the other guys car exerted a much larger impulse on my car because although impulse is force times time, its also the change in momentum and since my car went from 15mph to 0 in a split second, and his car barely rolled forward, a larger impulse was exerted on my car and therefore, destroying the front of my car. his car was hardly damaged, just a scuffed bumper because of the small impulse exerted on my car. this really sucks

Monday, November 2, 2009

Blog #4

















As you can see, i'm at a pool. whose pool??? you need not worry. you see the clips taken were for the purpose of realizing that physics is in everyday life you see, and everyday normal thing is happening in which a large boy, is going to hit another large boy into the pool. In the beginning, both boy's potential energies are 0 and so are their kinetic energies. When the boy starts to run, it is all turned into kinetic energy while the other boy's net energy is 0. As They make contact, the boy with the kinetic energy is slowed down and loses kinetic energy as it is transferred into the other boy. As they both fall into the pool, they both share the kinetic energy the running boy had. the enrgy throughout is the same, acccording to the law of conservation of energy. Then there's a candid of the boys. go physics!!!