Reading Assignment: Chapter 6 of Tippens.

We discuss in greater detail the two new kinematical equations that were introduced in the last lecture. Recall that these two equations can be written:
average v = (v + v0)/2
x = x0 + v0 t + at^2/2.
Here, x0 and v0 mean initial position and initial velocity, respectively, and t^2 means time-squared. (I can't do subscripts and superscripts easily in html, yet.) The second of these equations is Galileo's Third Kinematical Equation and relates (x, a, t).
We review the video seen in the last lecture, `The Law of Falling Bodies', from the Mechanical Universe video. (1, 2, 3, 4)
As the next subject, we discuss graphs of postion and velocity under constant acceleration versus time. (1, 2, 3, 4, 5)

Link for the Day: Nicole d'Oresme
(Who actually came to the correct formulation of the Law of Falling Bodies before Galileo.)

Questions or comments should be addressed to Mike Ritzwoller at ritzwoller@phys-geophys.colorado.edu 

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