Blog Post #4

This entire week, we've still been practicing formula problems involving kinematics. All of our problems involve these variables: distance(d), acceleration(a), time(t), final velocity(V), and original velocity(Vo). As one of our examples, Mr. Blake used an Expo pen to give us a better understanding of acceleration. He threw the pen up in the air and caught it at the same level as when he threw it. He then explained that the pens velocity traveling upward as well as the pens velocity traveling downward is the same when caught at the same level. This afternoon, after my younger sister and I were finished practicing throwing, our youngest sister brought out her glove and started doing this:

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as she continuously threw the ball up and caught it at the same level, it reminded me of the demonstration we had in class. As my sister threw the ball, its velocity going upward and downward remained the same. We try to practice with her as often as possible so she can be good like us ;p (just kidding) But just like physics problems, practice makes perfect.