# Particle on a Helical Wire A smooth wire is bent into the shape of a helix5.with cylindrical polar coordinates p= R and : = dó, where R and A are constants andthe z axis is vertically up (and gravity vertically down). Using z as your generalizedcoordinate, write down the Lagrangian for a bead of mass m threaded on the wire. Findthe Lagrange equation and hence the bead's vertical acceleration . In the limit thatR 0, what is 2? Does this make sense?

Question
1 views help_outlineImage TranscriptioncloseParticle on a Helical Wire A smooth wire is bent into the shape of a helix 5. with cylindrical polar coordinates p= R and : = dó, where R and A are constants and the z axis is vertically up (and gravity vertically down). Using z as your generalized coordinate, write down the Lagrangian for a bead of mass m threaded on the wire. Find the Lagrange equation and hence the bead's vertical acceleration . In the limit that R 0, what is 2? Does this make sense? fullscreen
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Step 1

Write an expression for Lagrangian in terms of cylindrical polar co-ordinates

Step 2

Write the Euler-Lagrange equation and substitute the Lagrangian

Step 3

Write the limiting case when t...

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