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lecture2B

# lecture2B - Physics 1A Lecture 2B"Your education is...

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Physics 1A Lecture 2B "Your education is ultimately the flavor left over after the facts, formulas, and diagrams have been forgotten." --Paul G. Hewitt

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Kinematics With the basic definitions now in place we can turn to kinematics. Kinematics is the study of motion. A set of equations to describe a body in motion has been derived known as the kinematic equations. These equations assume that the acceleration of the body in motion is constant in time.
Kinematics An object starts with an initial velocity, v o , at t = 0 and accelerates with with a constant acceleration, a. What is its final velocity, v, at time, t? This is the first kinematics equation!

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Kinematics Now let’s look at the definition of v avg again assuming a is constant and we start at t = 0: Also by looking at the graph, we find: This is the second kinematics equation!
Kinematics Recall our first kinematics equation: Re-substitute this velocity, v, back into our second kinematics equation: This is the third kinematics equation!

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Kinematics Recall our first kinematics equation: Re-substitute this time, t, back into our second kinematics equation: This is the fourth kinematics equation!
Kinematics

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