- #1
the keck
- 22
- 0
Homework Statement
Consider a pendulum the top point of which is oscillating vertically as y=a*cos*(gamma*t)
Find its Lagrangian and the equation of emotion
The Attempt at a Solution
I can do most of the question and obtain the Lagrangian, but when I derive the equation, I achieve the same one as that of pendulum which is fixed at the top point i.e. angular velocity or ("theta dot") = -g*sin(theta)/l
This seems strange to me, as I expected the oscillation at the top to vary the equation of motion
Regards,
The Keck