Lagrange Multipliers E,=0 A disc of mass m and radius R has a string wrapped around it with the end attached to a fixed support. The string is unwinding as the disk falls. Take I = mR². We will denote by r the length of the string and by 0', the angular speed of the disc.
Lagrange Multipliers E,=0 A disc of mass m and radius R has a string wrapped around it with the end attached to a fixed support. The string is unwinding as the disk falls. Take I = mR². We will denote by r the length of the string and by 0', the angular speed of the disc.
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Transcribed Image Text:Lagrange Multipliers
E,=0
A disc of mass m and radius R has
a string wrapped around it with the
end attached to a fixed support. The
string is unwinding as the disk falls.
Take I =
mR. We will denote by r
the length of the string and by 0', the
angular speed of the disc.
1. Express the constraint cquation, of the rolling without slipping dise, in
polar coordinate (r.0)
2. Write the modified Lagrangian equation
3. Derive the differential equations of motion for each coordinate
4. Calculate the Lagrange multiplier A. in terms of m, g
5. Calculate the equation of constraints Q, and Qe
Transcribed Image Text:Lagrangian Dynamics
Ep = 0
A pendulum of length / and mass m is
mounted on a block of mass M. The
block can move freely without friction
on a horizontal surface as shown in the
adjacent figure
H.
1. Find the velocity of mass m, w.r.t the origin O
2. Write the Lagrangian of the system
3. Derive the Euler Lagrange equations
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