lec24 - Lecture24 P112 Mar14,2008 +y 2.0 m/s After 1 4.0...

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Lecture 24 P112 Mar 14, 2008
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+x +y 1 2 1 Before After 4.0 m/s 2.5 m/s 150 kg 250 kg 2.0 m/s A collision of two bumper cars on a horizontal low friction surface is shown as seen from directly above. Just before the collision, car #1 of mass 150 kg is traveling to the left ( ) at 4.0 m/s, while car #2 of mass 250 kg is traveling in a perpendicular direction ( ) at 2.5 m/s. Just after the collision, car #1 is traveling at 2.0 m/s in #2's original direction. What are the x and y-components of car #2's velocity just after the collision (in m/s)?
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"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools." New York Times editorial, 1921, about Robert Goddard's revolutionary rocket work . "Correction: It is now definitely established that a rocket can function in a vaccuum. The 'Times' regrets the error." New York Times editorial, July 1969.
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This note was uploaded on 04/16/2009 for the course PHYS 1112 taught by Professor Leclair,a during the Fall '07 term at Cornell University (Engineering School).

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lec24 - Lecture24 P112 Mar14,2008 +y 2.0 m/s After 1 4.0...

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