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 one year ago
a pendulum is attached to roof of train , which is accelerating uniformly, then time period of pendulum will decrease or increase??
 one year ago
a pendulum is attached to roof of train , which is accelerating uniformly, then time period of pendulum will decrease or increase??

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Shikhar2408
 one year ago
Best ResponseYou've already chosen the best response.0the time period will remain the same.. the bob will do small oscillations but we know that \[T=2\Pi \sqrt{l/g}\] so in this eqn.there is no amplitude..therefore T is not related to the amplitude... hence time period remains same..

Shikhar2408
 one year ago
Best ResponseYou've already chosen the best response.0T resembles the time period of the bob.. by the way which text book are you studying?

VincentLyon.Fr
 one year ago
Best ResponseYou've already chosen the best response.1Time period will decrease, since new weight relative to train coach will be bigger: mg* with \(\vec {g*}=\vec g\vec a \) and \(g^*=\sqrt{g^2+a^2}\) \(T^*=2\pi \sqrt{l/g^*}\)

William
 one year ago
Best ResponseYou've already chosen the best response.0according to Einstein, the faster you go the heavier you are so the time period WILL DECREASE

VincentLyon.Fr
 one year ago
Best ResponseYou've already chosen the best response.1This is not a relativistic train :) So there is no increase in the mass of the pendulum.

William
 one year ago
Best ResponseYou've already chosen the best response.0lol ANYTHING that's moving at ANY speed will increase in mass relative to a nonmoving object

iamsmarterthanyou
 one year ago
Best ResponseYou've already chosen the best response.0just to be nerdy lol

iamsmarterthanyou
 one year ago
Best ResponseYou've already chosen the best response.0btw i am William i just got my account like deleted

VincentLyon.Fr
 one year ago
Best ResponseYou've already chosen the best response.1Increasing the mass without increasing the restoring force would make the period longer. On the accelerating train, you can simulate an increase in gravity, producing an increase in the restoring force without changing the inertia of the bob. The result is a faster motion / shorter period.

ghHabib
 11 months ago
Best ResponseYou've already chosen the best response.0if you are in the real case, the periode of the pendulum will decrease but that due to the effect of friction with the air ,in the opposite when we neglect the friction the periode remain constant .

VincentLyon.Fr
 11 months ago
Best ResponseYou've already chosen the best response.1@ghHabib The decrease in the period has nothing to do with air resistance (or its absence).
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