Yoyo The figure below shows a crude model of a yoyo. A massless string 4. suspended vertically from a fixed point and the other end around a uniform cylinder of mass m and radius R. When the cylinder is released it. moves vertically down, rotating as the string unwinds. Write down the Lagrangian, using the distance x as your generalized coordinate. Find the Lagrange equation of motion and show that the cylinder accelerates downward with 2q/3. wrapped several times 1 Hints: You need to remember from your introductory physics course that the total kinetic energy of a body like the yoyo is T = mu Iw, where v is the velocity of the center of mass, I is the moment of inertia (for a uniform cylinder, I =mR2) and w is the angular velocity about the CM. You can express w in terms of å.] x R
Yoyo The figure below shows a crude model of a yoyo. A massless string 4. suspended vertically from a fixed point and the other end around a uniform cylinder of mass m and radius R. When the cylinder is released it. moves vertically down, rotating as the string unwinds. Write down the Lagrangian, using the distance x as your generalized coordinate. Find the Lagrange equation of motion and show that the cylinder accelerates downward with 2q/3. wrapped several times 1 Hints: You need to remember from your introductory physics course that the total kinetic energy of a body like the yoyo is T = mu Iw, where v is the velocity of the center of mass, I is the moment of inertia (for a uniform cylinder, I =mR2) and w is the angular velocity about the CM. You can express w in terms of å.] x R
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter7: Hamilton's Principle-lagrangian And Hamiltonian Dynamics
Section: Chapter Questions
Problem 7.1P
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