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Unformatted text preview: related to its angular momentum L. Figure 14.10 shows how to calculate the angular momentum of the planet. The angular momentum of the planet can be calculated as follows Figure 14.10. Angular momentum of planet. Substituting this in the expression obtained for dA/dt we conclude that Since no external torques are acting on the sun-planet system, the angular momentum of the system is constant. This immediately indicates that dA/dt also remains constant. We conclude that " A line joining the planet to the sun sweeps out equal areas in equal time " This shows that the velocity of the planet will be highest when the distance between the sun and planet is smallest. The slowest velocity of the planet will occur when the distance between the sun and the planet is largest....
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- Fall '09
- Angular Momentum, Planet, Law of Areas