Today we are solving problems that involve conservation of energy and momentum calculations. Examples of this are the the "ballistic pendulum"
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Today we are working on the assignment package, but we will be focusing on problems in which you have two unknowns. There are various ways to solve these types of problems; we will explore these. What if there are two unknowns in the problem??Don't freak out if you start a collision problem (that is elastic) and you are asked to find the speeds of the two objects afterwards. This type of problem although challenging can be solved algebraically and graphically using wolfram alpha and the change of reference frame technique. Watch the tutorial to learn how!
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Today we are finishing up the worksheets that were handed out on Friday and starting an extension of the theorem using Integral Calculus. For more information click here. Example: if the time-variant force is F(t) = t^2+2t+6 and you want to know the impulse (momentum change from t=1 to t=4 seconds we must integrate F(t) from 1 to 4 Estimating from a graph...Estimating From a Graph... Notice that the area from 1 to 4 is the impulse. You can estimate it right from the graph without even doing the "calculus." We are doing a recap of the momentum-impulse theorem and then completing the work related to it. Tomorrow we will work on the extension using integral calculus to solve these problems.
Today we will do a short lesson about the basics of momentum. What is it? How can it be calculated?
Today you are working on the problem set that was assigned yesterday. Be sure to refer to yesterdays post for the questions, video tutorials, etc.
Today you are working on the problem set that was assigned yesterday. Be sure to refer to yesterdays post for the questions, video tutorials, etc.
2D Dynamics Problems
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