Intro Question: Get our times from throwing a ball in the air.
Class:
How can we find the initial velocity of a ball leaving our hand using the information we have?
Using the height formula, what other questions can we answer?
Completing the Questions in shared documents to the best of our abilities.
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Intro Question: Checkerboards and Dominos, oh my.
1. Go over HW:
Quadratics on the moon!
What's an inverse? Why does it matter?
Issues with the Assignment
2. A wrench drops from the 30th floor.
Set some parameters for this question.
what is the height at which we would be "Safe"?
(this should create a more general equation for us)
3. A factory is on one side of a river that is half a mile wide and amazingly straight and even. Eight miles downstream, there is a power plant. Our goal is to lay power lines from the power plant to our new, shiny factory.
it costs $24 a foot to lay the cable underground.
it costs $30 a foot to lay the cable underwater.
What is the CHEAPEST that we can lay the cables?
4 (if time permits): A window is being built and the bottom is a rectangle and the top is a semicircle. If there is 12 meters of framing materials what must the dimensions of the window be to let in the most light? (from http://tutorial.math.lamar.edu/Classes/CalcI/MoreOptimization.aspx )
The framing only goes around the outside of the object (not between the semi circle and the rectangle)