Tuesday, September 27, 2011

9/27 Breznai


Today, when we walked into class there was a review paper for our test on Thursday. The review can be found on http://www.lakotaeasthigh.com/leh_coatshaan/Honors/3Kinematics/KinematicsTestReviewKey.pdf. After that, we took notes on velocity and displacement. Displacement is the position of any particle that can be described by a vector in either polar or unit vector notation. We also learned that the poor students at West barely know how to add more than three vectors at a time. This is because they only use the law of cosines, while we use Roxy, which can have an infinite number of vectors at a time. #roxyswag @stedmanlowry. Velocity is a vector quantity and it not the only rate of motion. Average velocity is the displacement vector divided by the corresponding change in time. Also, we learned that Mrs. Coats-Haan is magic and can make smiley faces come out of her finger. Lastly, we learned that instantaneous velocity is analogous to instantaneous speed, meaning it is the velocity at any given moment. The homework tonight is page 53 #7-10
Question of the Day: Why did vectors come up again today?
Answer: I think the came up again because vectors can represent displacement, which can also help find velocity.

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