Pr2. A mathematical pendulum swings with angular amplitude a (a « 1), its period is T. By what factor does the period of the pendu- lum change if it is suddenly surrounded by two perfectly elastic walls (see figure)? The walls are arranged symmetrically, their angular distance is a.

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Pr2. A mathematical pendulum swings with
angular amplitude a (a « 1), its period is T.
By what factor does the period of the pendu-
lum change if it is suddenly surrounded by two
perfectly elastic walls (see figure)? The walls are
arranged symmetrically, their angular distance
is a.
12a
Transcribed Image Text:Pr2. A mathematical pendulum swings with angular amplitude a (a « 1), its period is T. By what factor does the period of the pendu- lum change if it is suddenly surrounded by two perfectly elastic walls (see figure)? The walls are arranged symmetrically, their angular distance is a. 12a
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