маятник в поезде движущемся с ускорением
Чему равен период Т колебаний математического маятника длиной L в поезде, движущемся горизонтально с ускорением а?
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![[strm] Алексей Корягин](https://sun9-21.userapi.com/LJPCP2L-uAKVYpCq4rbWNTAavNLpjzNPPUF3-Q/XKNuNZxT0SM.jpg)
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