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Week 3


jrwalther

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This week I focused on chapter 5 in Mechanics.   This included momentum and impulse, conservation of linear momentum and center of mass.

Areas that went well for me were momentum and impulse and conservation of linear momentum.  What helped me to really understand these two topics were first understand the graphs that went along with them.  This included Force vs. Time graphs showing the impulse to be the area under it.  These graphs gave me a better understanding of what I was solving for when I got to problems.

Center of mass was the topic I had the most difficulty with.  However plotting the points on a graph helped me with this as well.  The equation Xcm= (m1x1+m2x2).../m1+m2... really helped me understand finding the center of mass of different points.  Finding it for other objects such as rods however was still quite challenging.

My major key to success this week was working more with graphs.  Once I understood graphs whether it be just plotting point or graphs such as Force vs. Time, they all helped me get a better understanding of the topic I was working on.   

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Glad to hear it went well.  The center of mass concept is one that many times allows you to solve problems more simply than traditional 'plug and chug' formulas.  You'll find it useful in a variety of units in the course!

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