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

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Shikhar2408Best ResponseYou've already chosen the best response.0
the 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..
 4 months ago

Shikhar2408Best ResponseYou've already chosen the best response.0
T resembles the time period of the bob.. by the way which text book are you studying?
 4 months ago

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

WilliamBest ResponseYou've already chosen the best response.0
according to Einstein, the faster you go the heavier you are so the time period WILL DECREASE
 2 months ago

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

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

iamsmarterthanyouBest ResponseYou've already chosen the best response.0
just to be nerdy lol
 2 months ago

iamsmarterthanyouBest ResponseYou've already chosen the best response.0
btw i am William i just got my account like deleted
 2 months ago

VincentLyon.FrBest ResponseYou've already chosen the best response.1
Increasing 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.
 2 months ago

ghHabibBest ResponseYou've already chosen the best response.0
if 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 .
 16 days ago

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