Physics 197 Lecture 12: Conservation of Angular Momentum
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Physics 197 Full Course Notes
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The gravitational interaction between a leaning top and the earth exerts a horizontal torque on the top that is always perpendicular to the top"s angular momentum. T = (2pi(i/m) )/(rcm(g): purpose: de nes the period, = angular speed, rcm = distance that its center of mass is from its bottom, i/m = moment of inertia per unit mass. If an interaction between two particles exerts forces on the particles that: 1) are equal in magnitude and opposite in direction (as required by conservation of momentum, 2) also act parallel to the line connecting the particles.
