P1112_Sp2009_Lab8_prelab

P1112_Sp2009_Lab8_prelab - Lab Section Name Lab Instructor...

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Unformatted text preview: Lab Section: ______ Name: ______________________________ Lab Instructor: ______________________________ Grade: ______ P1112 Lab Notes Pre-lab 8-1 Cornell University, Spring 2009 Lab Unit # 8 Pre-lab Questions: Angular Momentum & Precession 1. Write the general mathematical relation that exists between the total (vector) angular momentum L r of a system about a point and the net external (vector) torque τ r acting on the system about the same point. 2. A spinning bicycle wheel of total mass M and radius R is suspended from a rope at point P on its axle, a distance s from the wheel’s center of mass (CM). (a) Write an expression for the magnitude of the torque τ about point P produced by the wheel’s weight (in terms of M and s ). = τ ____________________. What is the direction of this torque τ r as a vector quantity? (b) What torque about point P is produced by the tension force exerted by the rope?...
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This note was uploaded on 12/25/2009 for the course PHYS 1112 taught by Professor Leclair,a during the Spring '07 term at Cornell.

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P1112_Sp2009_Lab8_prelab - Lab Section Name Lab Instructor...

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