The class started at a question about curvilinear motion. From the question, we can know the velocity has vector, and it can divide in two component which is x-axis, y-axis. Then, we talked about the one of the previous test problem, and we redo it, and had a deeper analysis. We made the graph of falling object in six graph, which is acceleration on xy axis, velocity on xy axis, and position on xy axis. From the graph, we found the acceleration on x-axis is constant. Then we calculated some number which Professor Mason asked we do.
Then we did a question about crossing river. To solve this kind of problem, the connection is Time! Don't forget it.
Next topic we talked about is centripetal force. Of course, we could know the object is doing in circular motion. We did some reviews from Physics 2A.
Fcentripetal=(mv^2)/R
When a string tie a object, and it is stayed. We could know the object has weight and Tension force. But, when it is doing in circular motion, it has centripetal force!!! At this time, the equation could be: Acceleration=(V^2)/R
T=W+F
When the object at the bottom, the Tension force will be largest.
After we finished talking about the lecture, Professor Mason give us rest of class to improve our mouse trap cart, and we also need to collect the data of the mouse trap. We used Loggerpro to record the video of cart moving by mouse trap, and calculate the acceleration, then, we need record the video of cart moving by mass, and get the another acceleration. With two acceleration, we can make a model in our Vpython.
That's all we did on April 3rd. On coming Tuesday, and Professor Mason will pass back the exam which we took on last Tuesday, and Professor Mason will pass back lab report either. The mouse trap cart also due on Tuesday, and we will test the result on that day. To get a good grade in the project, please following the form which Professor Mason post on April 3.Probably, we need show the presentation and Vpython on that day! Guys, please prepare for our first object, and get ready for our next project because Professor will give out the second project at same day.
At last,
Hope everyone get a satisfying grade on our first project.
Thanks for reading
Frank Mao
After we finished talking about the lecture, Professor Mason give us rest of class to improve our mouse trap cart, and we also need to collect the data of the mouse trap. We used Loggerpro to record the video of cart moving by mouse trap, and calculate the acceleration, then, we need record the video of cart moving by mass, and get the another acceleration. With two acceleration, we can make a model in our Vpython.
That's all we did on April 3rd. On coming Tuesday, and Professor Mason will pass back the exam which we took on last Tuesday, and Professor Mason will pass back lab report either. The mouse trap cart also due on Tuesday, and we will test the result on that day. To get a good grade in the project, please following the form which Professor Mason post on April 3.Probably, we need show the presentation and Vpython on that day! Guys, please prepare for our first object, and get ready for our next project because Professor will give out the second project at same day.
At last,
Hope everyone get a satisfying grade on our first project.
Thanks for reading
Frank Mao
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