MT2CheatSheet1 - Key Equations from Midterm 1 Chapter 5 1-D...

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Key Equations from Midterm 1: 1-D Motion Equations: , , , Friction equations: 2 1 0 0 2 ( ) x x x x t x v t a t = = + 0 ( ) x x x v t v a t = + 2 2 0 2 x v v a x = + f s µ s F n f k = µ k F n x x F = ma Chapter 5 Circular Motion: A particle moving with a constant velocity v along a circular arc has an acceleration: toward the center of the circle, where r is the radius of the circle. The period (T) of a particle moving at constant velocity in a circle is: T=2 " r / v . Drag Forces: A drag force is a force opposing the motion of an object which increases with increased speed. For an object with a drag force proportional to velocity, we can solve for the equation of motion: 2 c v a r = y 0 0 F / ln 1 / v t b b t t m m dv dv b dv dv b mg bv m g v dt dt b mg dt dt m m g v v m b dv b v mg b b mg mg mg dt t v e v e mg m mg b m b b b v b = = = = = = = = = Chapter 6
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This note was uploaded on 04/07/2009 for the course PHYSICS 7A taught by Professor Lanzara during the Spring '08 term at Berkeley.

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