Physics 1 Problem Solutions 43

Physics 1 Problem Solutions 43 - Chapt. 4 Two- and...

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Unformatted text preview: Chapt. 4 Two- and Three-Dimensional Kinematics 39 What are displacement, velocity, acceleration in coordinates, Alex? a) polar b) Cartesian c) spherical polar d) elliptical e) hyperbolical 004 qmult 00550 1 4 3 easy deducto-memory: centripetal acceleration defined sort of Extra keywords: physci 26. Lets play Jeopardy ! For $100, the answer is: It is the acceleration in a case of circular motion. What is , Alex? a) net acceleration b) centrifugal (center-fleeing) acceleration c) centripetal (center-pointing) acceleration d) deceleration e) zero 004 qmult 00552 1 1 3 easy memory: centripetal acceleration formula 1 27. The radial component of acceleration in polar coordinates a r = d 2 r dt 2 r parenleftbigg d dt parenrightbigg 2 = d 2 r dt 2 r 2 specializes to if the motion is circular and centered on the origin. In this case, the radial component of acceleration is called centripetal (meaning center pointing) since, in fact, it is always negative (i.e., the radial component of acceleration always points toward thefact, it is always negative (i....
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This note was uploaded on 11/16/2011 for the course PHY 2053 taught by Professor Buchler during the Fall '06 term at University of Florida.

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