ianmorales4894

10.07.2019 • 

Physics

A) write the lagrangian for a simple pendulum consisting of a point mass m suspended at the end of a massless string of length l. derive the equation of motion from the euler-lagrange equation, and solve for the motion in the small angle approximation. b) assume the massless string can stretch with a restoring force f = -k (r-r0), where r0 is the unstretched length. write the new lagrangian and find the equations of motion. c) can you re-write the resulting two coupled 2 nd -order differential equations as four coupled 1 st - order differential equations (hint: let v=dr/dt and ω = dϑ/dt).

Ответ:

vkrizh

14.12.2020

Physics

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energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

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