Today we are doing a spring energy investigation and completing the spring energy problems. Quiz will be on Tuesday for this mini-unit.
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Hooke's Law
Watch the video below explaining the basics of Hooke's Law. Today we are working on conservation of momentum review problems - the quiz will be tomorrow.
We are finishing the 2D collisions problems and doing a car crash reconstruction project.
Dynamics ProblemOne question "make up" quiz problem. Solving 2D Collision Problems - continued...We will be solving problems for collisions in 2 dimensions that are elastic or partially elastic today.
Collisions in 2 DimensionsToday were are learning about collisions in 2-dimensions. Of course momentum in conserved in all three independent spatial dimensions. So, you can break the momentum of the individual objects into x, y, and even z components and conserve energy in these three directions to solve the problems. No new physics here, just slightly more complicated problems. Random Example Problem - not mine...Today we are solving problems that involve conservation of energy and momentum calculations. Examples of this are the the "ballistic pendulum"
A continuation of our work with momentum conservation and completing the worksheet that was handed out to you last week.
Today we are solving elastic collision problems where the final speeds of the two objects are unknown. We will have to look at writing equations for MOMENTUM CONSERVATION and KINETIC ENERGY CONSERVATION. Writing this two equations and doing the substitution will give you the solutions for both the initial and final conditions. You can also put this into Wolfram Alpha to get the solutions. Practice both!!
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