Consider two blocks of masses m and m; attached together with a massless and un-stretchable string of constant length L. The string passes over a small, massless and frietionless pulley. The mass m, is heavier than m:, the direction of motion is presented in the figure below. Take the gravitational potential energy PE -0 at the level of pulley. Neglect all friction effects and the radius of the pulley. Take x, = -x. y-0,,-0,y-0 and z;-0. (a) Write down the constraint relation(s). (b) Show that the number s of degrees of freedom is 1. ( (c) Obtain expressions for the kinetic energy, potential energy, Lagrangian as a function of x, and x, Write the ountinn the countion of mlimd mommta e
Consider two blocks of masses m and m; attached together with a massless and un-stretchable string of constant length L. The string passes over a small, massless and frietionless pulley. The mass m, is heavier than m:, the direction of motion is presented in the figure below. Take the gravitational potential energy PE -0 at the level of pulley. Neglect all friction effects and the radius of the pulley. Take x, = -x. y-0,,-0,y-0 and z;-0. (a) Write down the constraint relation(s). (b) Show that the number s of degrees of freedom is 1. ( (c) Obtain expressions for the kinetic energy, potential energy, Lagrangian as a function of x, and x, Write the ountinn the countion of mlimd mommta e
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Consider two blocks of masses mi and m; attached together with a massless and un-stretchable
string of constant length L. The string passes over a small, massless and frictionless pulley. The
d or cre
mass mi is heavier than m:, the direction of motion is presented in the figure below. Take the
s dor
gravitational potential energy PE = 0 at the level of pulley. Neglect all frietion effects and the
radius of the pulley. Take x, = -X,y =0, ==0,y:=0 and z;= 0.
(a) Write down the constraint relation(s).
(b) Show that the number s of degrees of freedom is 1.
(c) Obtain expressions for the kinetic energy, potential energy,
comm
T com
Lagrangian as a function of x, and x,
PEco
(d) Write the equation the equation of generalized momenta Pat.
(e) Deduce the Hamiltonian as a function of Pa1, X1, g, m; and m2.
() Use the Hamilton canonical equations and determine the equation of motion
of the two blocks
(2) Deduce the expression of the accelerations , as a function of m, and m; and the
gravity.
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