Two masses m and M are connected by a light inextensible string. (One mass is on a ramp of angle theta, and is connected to the other mass by a string going over a pulley and the other mass is hanging straight down) If the surface is frictionless, set up the equations of motion and find the acceleration of the system.(adsbygoogle = window.adsbygoogle || []).push({});

My question is this, am I making this too simple? Here's my kinetic energy function. 1/2m(dy/dt)^2 + 1/2M(dy/dt^2) and my potential is mgysin(theta) -Mgy. I'm pretty scatterbrained but it seems to me that there should only be one generalized co-ordinate so that is why I have set my equations up as such. But theres this little nagging part of my brain that says the kinetic energy has two components x and y, but I know energy is a scalar so maybe thats ludicrous. Any help would be appreciated.

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# Homework Help: Lagrange's Equations help

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