anonymous
  • anonymous
a particle starts SHM from means postition then find out the time taken by particle in moving from mean position to half of extreme position and from half of extreme to mean position
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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wasiqss
  • wasiqss
so
anonymous
  • anonymous
my doubt is how to start i mean in first part x=asinwt
anonymous
  • anonymous
no shankvee its not the ans by the way and u dont jhave to solve till i ask u ..ok u just have to make correction in my ans or clear my doubts dat i m facing in ques

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anonymous
  • anonymous
ok ok very sorry. :D
anonymous
  • anonymous
yeah so in first part half of extreme would be A/2. Then find time.
anonymous
  • anonymous
np.. well here extreme means A rit and half of extreme is said to be A/2 so A/2=Asin wt sinwt=/2 sinwt=pie/6
anonymous
  • anonymous
Correct.
anonymous
  • anonymous
nw from extreme to mean i m not gettin how to do this part
anonymous
  • anonymous
i mean give me hint dont solve
anonymous
  • anonymous
Whatever time it takes from mean to extreme its same for reverse journey.
anonymous
  • anonymous
no its not and how can be it will be same imagine there is air ressitance force is also there which slows down the speed
anonymous
  • anonymous
i remeber when i used pendulum timing is not same in practicals
anonymous
  • anonymous
Ok lets see (Air resistance does not matter This is ideal case.)
anonymous
  • anonymous
as velocity decreases due to time increases
wasiqss
  • wasiqss
shm means that we have to neglect resistive force
anonymous
  • anonymous
Ok so if you calculate time to reach from mean to extreme then you get wt=pi/2. Now time taken to reach from mean to mean again, would be wt=pi. Think about it. subtracting the two would give wt=pi/2 so it turns out to be same.
anonymous
  • anonymous
but then dont u think pendulum will have same KE in all position??
anonymous
  • anonymous
No KE isn't same as PE varies( Conservation of mechanical energy). Total mechanical energy will reamin same.
anonymous
  • anonymous
thats wat i m saying velocity differs due t which KE also differs
anonymous
  • anonymous
to
anonymous
  • anonymous
Wait what are you asking?
anonymous
  • anonymous
time period from half of extreme to mean
anonymous
  • anonymous
ya
anonymous
  • anonymous
Well here |dw:1328375754735:dw| Now here particle will first move from half of mean to extreme and then from extreme to mean. Calculate each time seperately.
anonymous
  • anonymous
luk wen it is going from mean to half extreme time period is T/12 wen it goes from half of extreme to mean its timeperiod is T/6
anonymous
  • anonymous
yes........ that is correct
anonymous
  • anonymous
yea i get it means we have to do t=T2-T1 t=T/4 - T/12 t=T/6
anonymous
  • anonymous
u are right partially t = T/-8
anonymous
  • anonymous
You asked me time for extreme to mean and i told you it'll be same as from mean to extreme....
anonymous
  • anonymous
Hold on your equation are wrong anuway the time is T/12 only.
anonymous
  • anonymous
yea but wen we go from mean to extreme time period is T/12 and from mean to xtreme T/4 and time period from half extrreme to mean is T/6 luks value is different
anonymous
  • anonymous
i done this by luking ur duagram shown by u
anonymous
  • anonymous
It isn't T/4-T/12. That would be time from extreme to half of mean i'm talking of mean to half of extreme.
anonymous
  • anonymous
Wait wait hold on go slow.
anonymous
  • anonymous
and by the way yash calulate agin it will come T/6
anonymous
  • anonymous
What i'm saying is |dw:1328376302162:dw| time taken from A to B is same as B to A as in it goes directly from B to A not from B to C then to A.
anonymous
  • anonymous
mean to half we will get T/12 ok nw pendulum is not stop there it goes to mean so time period we calulate is the whole displacement from mean to extreme right now we have to see time period from half extreme to that mean
anonymous
  • anonymous
I'm sorry, i'm running really late i need to go, i'll reply tomorrow.
anonymous
  • anonymous
|dw:1328983593297:dw|
anonymous
  • anonymous
ok bye nd thnx for ur help
anonymous
  • anonymous
Did you get it???
anonymous
  • anonymous
yea i get and today i given my exam it was awesome but after as u gone due to some mischeif happen here so i m unable to study more my concentration gone but anyway paper goes well .. and now i got holiday finally after a long time and now i m soon going back to home :PP happy a lot ..

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