Recent content by sungj25

I'm doing an experiment and I have to calculate calculate rotational kinetic energy of this can rolling down an inclined plane. According to the equation, Er=1/2Iw^2, I=mr^2, and w=v/r (no slipping effect) right? but doesn't I=mr^2 apply only when the weight is evenly distributed throughout...

Thanks for the compliments (: um I tried with a normal plastic bottle and a soda can, they both worked (but i had less than half the bottle of water). I also noticed that it also works with other materials. I tried it with beans and the bottle still oscillates around a fixed point before...

hi I am just saw this phenomenon and see if there is any links to the topic that I am learning in school. So when i rolled a half full (depends on how optimistic you are :smile:) water bottle with a certain amount of force, the bottle went back and forth for a little while before stopping...